20280630720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{11743}}^1$

素因数の和:12027

約数の個数: 224

約数和(自身を含む): 73882349568

約数和(自身を除く): 53601718848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 257, 280, 320, 336, 420, 448, 480, 514, 560, 672, 771, 840, 960, 1028, 1120, 1285, 1344, 1542, 1680, 1799, 2056, 2240, 2570, 3084, 3360, 3598, 3855, 4112, 5140, 5397, 6168, 6720, 7196, 7710, 8224, 8995, 10280, 10794, 11743, 12336, 14392, 15420, 16448, 17990, 20560, 21588, 23486, 24672, 26985, 28784, 30840, 35229, 35980, 41120, 43176, 46972, 49344, 53970, 57568, 58715, 61680, 70458, 71960, 82201, 82240, 86352, 93944, 107940, 115136, 117430, 123360, 140916, 143920, 164402, 172704, 176145, 187888, 215880, 234860, 246603, 246720, 281832, 287840, 328804, 345408, 352290, 375776, 411005, 431760, 469720, 493206, 563664, 575680, 657608, 704580, 751552, 822010, 863520, 939440, 986412, 1127328, 1233015, 1315216, 1409160, 1644020, 1727040, 1878880, 1972824, 2254656, 2466030, 2630432, 2818320, 3017951, 3288040, 3757760, 3945648, 4932060, 5260864, 5636640, 6035902, 6576080, 7891296, 9053853, 9864120, 11273280, 12071804, 13152160, 15089755, 15782592, 18107706, 19728240, 21125657, 24143608, 26304320, 30179510, 36215412, 39456480, 42251314, 45269265, 48287216, 60359020, 63376971, 72430824, 78912960, 84502628, 90538530, 96574432, 105628285, 120718040, 126753942, 144861648, 169005256, 181077060, 193148864, 211256570, 241436080, 253507884, 289723296, 316884855, 338010512, 362154120, 422513140, 482872160, 507015768, 579446592, 633769710, 676021024, 724308240, 845026280, 965744320, 1014031536, 1267539420, 1352042048, 1448616480, 1690052560, 2028063072, 2535078840, 2897232960, 3380105120, 4056126144, 5070157680, 6760210240, 10140315360, 20280630720]

約数ペア:

[(1, 20280630720), (2, 10140315360), (3, 6760210240), (4, 5070157680), (5, 4056126144), (6, 3380105120), (7, 2897232960), (8, 2535078840), (10, 2028063072), (12, 1690052560), (14, 1448616480), (15, 1352042048), (16, 1267539420), (20, 1014031536), (21, 965744320), (24, 845026280), (28, 724308240), (30, 676021024), (32, 633769710), (35, 579446592), (40, 507015768), (42, 482872160), (48, 422513140), (56, 362154120), (60, 338010512), (64, 316884855), (70, 289723296), (80, 253507884), (84, 241436080), (96, 211256570), (105, 193148864), (112, 181077060), (120, 169005256), (140, 144861648), (160, 126753942), (168, 120718040), (192, 105628285), (210, 96574432), (224, 90538530), (240, 84502628), (257, 78912960), (280, 72430824), (320, 63376971), (336, 60359020), (420, 48287216), (448, 45269265), (480, 42251314), (514, 39456480), (560, 36215412), (672, 30179510), (771, 26304320), (840, 24143608), (960, 21125657), (1028, 19728240), (1120, 18107706), (1285, 15782592), (1344, 15089755), (1542, 13152160), (1680, 12071804), (1799, 11273280), (2056, 9864120), (2240, 9053853), (2570, 7891296), (3084, 6576080), (3360, 6035902), (3598, 5636640), (3855, 5260864), (4112, 4932060), (5140, 3945648), (5397, 3757760), (6168, 3288040), (6720, 3017951), (7196, 2818320), (7710, 2630432), (8224, 2466030), (8995, 2254656), (10280, 1972824), (10794, 1878880), (11743, 1727040), (12336, 1644020), (14392, 1409160), (15420, 1315216), (16448, 1233015), (17990, 1127328), (20560, 986412), (21588, 939440), (23486, 863520), (24672, 822010), (26985, 751552), (28784, 704580), (30840, 657608), (35229, 575680), (35980, 563664), (41120, 493206), (43176, 469720), (46972, 431760), (49344, 411005), (53970, 375776), (57568, 352290), (58715, 345408), (61680, 328804), (70458, 287840), (71960, 281832), (82201, 246720), (82240, 246603), (86352, 234860), (93944, 215880), (107940, 187888), (115136, 176145), (117430, 172704), (123360, 164402), (140916, 143920)]