19490880

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:356

約数の個数: 112

約数和(自身を含む): 62910720

約数和(自身を除く): 43419840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 158, 160, 192, 237, 240, 257, 316, 320, 395, 474, 480, 514, 632, 771, 790, 948, 960, 1028, 1185, 1264, 1285, 1542, 1580, 1896, 2056, 2370, 2528, 2570, 3084, 3160, 3792, 3855, 4112, 4740, 5056, 5140, 6168, 6320, 7584, 7710, 8224, 9480, 10280, 12336, 12640, 15168, 15420, 16448, 18960, 20303, 20560, 24672, 25280, 30840, 37920, 40606, 41120, 49344, 60909, 61680, 75840, 81212, 82240, 101515, 121818, 123360, 162424, 203030, 243636, 246720, 304545, 324848, 406060, 487272, 609090, 649696, 812120, 974544, 1218180, 1299392, 1624240, 1949088, 2436360, 3248480, 3898176, 4872720, 6496960, 9745440, 19490880]

約数ペア:

[(1, 19490880), (2, 9745440), (3, 6496960), (4, 4872720), (5, 3898176), (6, 3248480), (8, 2436360), (10, 1949088), (12, 1624240), (15, 1299392), (16, 1218180), (20, 974544), (24, 812120), (30, 649696), (32, 609090), (40, 487272), (48, 406060), (60, 324848), (64, 304545), (79, 246720), (80, 243636), (96, 203030), (120, 162424), (158, 123360), (160, 121818), (192, 101515), (237, 82240), (240, 81212), (257, 75840), (316, 61680), (320, 60909), (395, 49344), (474, 41120), (480, 40606), (514, 37920), (632, 30840), (771, 25280), (790, 24672), (948, 20560), (960, 20303), (1028, 18960), (1185, 16448), (1264, 15420), (1285, 15168), (1542, 12640), (1580, 12336), (1896, 10280), (2056, 9480), (2370, 8224), (2528, 7710), (2570, 7584), (3084, 6320), (3160, 6168), (3792, 5140), (3855, 5056), (4112, 4740)]