18397600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 144

約数和(自身を含む): 50856120

約数和(自身を除く): 32458520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 32, 40, 50, 52, 58, 61, 65, 80, 100, 104, 116, 122, 130, 145, 160, 200, 208, 232, 244, 260, 290, 305, 325, 377, 400, 416, 464, 488, 520, 580, 610, 650, 725, 754, 793, 800, 928, 976, 1040, 1160, 1220, 1300, 1450, 1508, 1525, 1586, 1769, 1885, 1952, 2080, 2320, 2440, 2600, 2900, 3016, 3050, 3172, 3538, 3770, 3965, 4640, 4880, 5200, 5800, 6032, 6100, 6344, 7076, 7540, 7930, 8845, 9425, 9760, 10400, 11600, 12064, 12200, 12688, 14152, 15080, 15860, 17690, 18850, 19825, 22997, 23200, 24400, 25376, 28304, 30160, 31720, 35380, 37700, 39650, 44225, 45994, 48800, 56608, 60320, 63440, 70760, 75400, 79300, 88450, 91988, 114985, 126880, 141520, 150800, 158600, 176900, 183976, 229970, 283040, 301600, 317200, 353800, 367952, 459940, 574925, 634400, 707600, 735904, 919880, 1149850, 1415200, 1839760, 2299700, 3679520, 4599400, 9198800, 18397600]

約数ペア:

[(1, 18397600), (2, 9198800), (4, 4599400), (5, 3679520), (8, 2299700), (10, 1839760), (13, 1415200), (16, 1149850), (20, 919880), (25, 735904), (26, 707600), (29, 634400), (32, 574925), (40, 459940), (50, 367952), (52, 353800), (58, 317200), (61, 301600), (65, 283040), (80, 229970), (100, 183976), (104, 176900), (116, 158600), (122, 150800), (130, 141520), (145, 126880), (160, 114985), (200, 91988), (208, 88450), (232, 79300), (244, 75400), (260, 70760), (290, 63440), (305, 60320), (325, 56608), (377, 48800), (400, 45994), (416, 44225), (464, 39650), (488, 37700), (520, 35380), (580, 31720), (610, 30160), (650, 28304), (725, 25376), (754, 24400), (793, 23200), (800, 22997), (928, 19825), (976, 18850), (1040, 17690), (1160, 15860), (1220, 15080), (1300, 14152), (1450, 12688), (1508, 12200), (1525, 12064), (1586, 11600), (1769, 10400), (1885, 9760), (1952, 9425), (2080, 8845), (2320, 7930), (2440, 7540), (2600, 7076), (2900, 6344), (3016, 6100), (3050, 6032), (3172, 5800), (3538, 5200), (3770, 4880), (3965, 4640)]