19757920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 192

約数和(自身を含む): 60963840

約数和(自身を除く): 41205920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 32, 35, 40, 46, 52, 56, 59, 65, 70, 80, 91, 92, 104, 112, 115, 118, 130, 140, 160, 161, 182, 184, 208, 224, 230, 236, 260, 280, 295, 299, 322, 364, 368, 413, 416, 455, 460, 472, 520, 560, 590, 598, 644, 728, 736, 767, 805, 826, 910, 920, 944, 1040, 1120, 1180, 1196, 1288, 1357, 1456, 1495, 1534, 1610, 1652, 1820, 1840, 1888, 2065, 2080, 2093, 2360, 2392, 2576, 2714, 2912, 2990, 3068, 3220, 3304, 3640, 3680, 3835, 4130, 4186, 4720, 4784, 5152, 5369, 5428, 5980, 6136, 6440, 6608, 6785, 7280, 7670, 8260, 8372, 9440, 9499, 9568, 10465, 10738, 10856, 11960, 12272, 12880, 13216, 13570, 14560, 15340, 16520, 16744, 17641, 18998, 20930, 21476, 21712, 23920, 24544, 25760, 26845, 27140, 30680, 33040, 33488, 35282, 37996, 41860, 42952, 43424, 47495, 47840, 53690, 54280, 61360, 66080, 66976, 70564, 75992, 83720, 85904, 88205, 94990, 107380, 108560, 122720, 123487, 141128, 151984, 167440, 171808, 176410, 189980, 214760, 217120, 246974, 282256, 303968, 334880, 352820, 379960, 429520, 493948, 564512, 617435, 705640, 759920, 859040, 987896, 1234870, 1411280, 1519840, 1975792, 2469740, 2822560, 3951584, 4939480, 9878960, 19757920]

約数ペア:

[(1, 19757920), (2, 9878960), (4, 4939480), (5, 3951584), (7, 2822560), (8, 2469740), (10, 1975792), (13, 1519840), (14, 1411280), (16, 1234870), (20, 987896), (23, 859040), (26, 759920), (28, 705640), (32, 617435), (35, 564512), (40, 493948), (46, 429520), (52, 379960), (56, 352820), (59, 334880), (65, 303968), (70, 282256), (80, 246974), (91, 217120), (92, 214760), (104, 189980), (112, 176410), (115, 171808), (118, 167440), (130, 151984), (140, 141128), (160, 123487), (161, 122720), (182, 108560), (184, 107380), (208, 94990), (224, 88205), (230, 85904), (236, 83720), (260, 75992), (280, 70564), (295, 66976), (299, 66080), (322, 61360), (364, 54280), (368, 53690), (413, 47840), (416, 47495), (455, 43424), (460, 42952), (472, 41860), (520, 37996), (560, 35282), (590, 33488), (598, 33040), (644, 30680), (728, 27140), (736, 26845), (767, 25760), (805, 24544), (826, 23920), (910, 21712), (920, 21476), (944, 20930), (1040, 18998), (1120, 17641), (1180, 16744), (1196, 16520), (1288, 15340), (1357, 14560), (1456, 13570), (1495, 13216), (1534, 12880), (1610, 12272), (1652, 11960), (1820, 10856), (1840, 10738), (1888, 10465), (2065, 9568), (2080, 9499), (2093, 9440), (2360, 8372), (2392, 8260), (2576, 7670), (2714, 7280), (2912, 6785), (2990, 6608), (3068, 6440), (3220, 6136), (3304, 5980), (3640, 5428), (3680, 5369), (3835, 5152), (4130, 4784), (4186, 4720)]