109976800

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 144

約数和(自身を含む): 288731520

約数和(自身を除く): 178754720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 43, 46, 50, 80, 86, 92, 100, 115, 139, 160, 172, 184, 200, 215, 230, 278, 344, 368, 400, 430, 460, 556, 575, 688, 695, 736, 800, 860, 920, 989, 1075, 1112, 1150, 1376, 1390, 1720, 1840, 1978, 2150, 2224, 2300, 2780, 3197, 3440, 3475, 3680, 3956, 4300, 4448, 4600, 4945, 5560, 5977, 6394, 6880, 6950, 7912, 8600, 9200, 9890, 11120, 11954, 12788, 13900, 15824, 15985, 17200, 18400, 19780, 22240, 23908, 24725, 25576, 27800, 29885, 31648, 31970, 34400, 39560, 47816, 49450, 51152, 55600, 59770, 63940, 79120, 79925, 95632, 98900, 102304, 111200, 119540, 127880, 137471, 149425, 158240, 159850, 191264, 197800, 239080, 255760, 274942, 298850, 319700, 395600, 478160, 511520, 549884, 597700, 639400, 687355, 791200, 956320, 1099768, 1195400, 1278800, 1374710, 2199536, 2390800, 2557600, 2749420, 3436775, 4399072, 4781600, 5498840, 6873550, 10997680, 13747100, 21995360, 27494200, 54988400, 109976800]

約数ペア:

[(1, 109976800), (2, 54988400), (4, 27494200), (5, 21995360), (8, 13747100), (10, 10997680), (16, 6873550), (20, 5498840), (23, 4781600), (25, 4399072), (32, 3436775), (40, 2749420), (43, 2557600), (46, 2390800), (50, 2199536), (80, 1374710), (86, 1278800), (92, 1195400), (100, 1099768), (115, 956320), (139, 791200), (160, 687355), (172, 639400), (184, 597700), (200, 549884), (215, 511520), (230, 478160), (278, 395600), (344, 319700), (368, 298850), (400, 274942), (430, 255760), (460, 239080), (556, 197800), (575, 191264), (688, 159850), (695, 158240), (736, 149425), (800, 137471), (860, 127880), (920, 119540), (989, 111200), (1075, 102304), (1112, 98900), (1150, 95632), (1376, 79925), (1390, 79120), (1720, 63940), (1840, 59770), (1978, 55600), (2150, 51152), (2224, 49450), (2300, 47816), (2780, 39560), (3197, 34400), (3440, 31970), (3475, 31648), (3680, 29885), (3956, 27800), (4300, 25576), (4448, 24725), (4600, 23908), (4945, 22240), (5560, 19780), (5977, 18400), (6394, 17200), (6880, 15985), (6950, 15824), (7912, 13900), (8600, 12788), (9200, 11954), (9890, 11120)]