74688640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 197406720

約数和(自身を除く): 122718080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 104, 128, 130, 160, 188, 191, 208, 235, 260, 320, 376, 382, 416, 470, 520, 611, 640, 752, 764, 832, 940, 955, 1040, 1222, 1504, 1528, 1664, 1880, 1910, 2080, 2444, 2483, 3008, 3055, 3056, 3760, 3820, 4160, 4888, 4966, 6016, 6110, 6112, 7520, 7640, 8320, 8977, 9776, 9932, 12220, 12224, 12415, 15040, 15280, 17954, 19552, 19864, 24440, 24448, 24830, 30080, 30560, 35908, 39104, 39728, 44885, 48880, 49660, 61120, 71816, 78208, 79456, 89770, 97760, 99320, 116701, 122240, 143632, 158912, 179540, 195520, 198640, 233402, 287264, 317824, 359080, 391040, 397280, 466804, 574528, 583505, 718160, 794560, 933608, 1149056, 1167010, 1436320, 1589120, 1867216, 2334020, 2872640, 3734432, 4668040, 5745280, 7468864, 9336080, 14937728, 18672160, 37344320, 74688640]

約数ペア:

[(1, 74688640), (2, 37344320), (4, 18672160), (5, 14937728), (8, 9336080), (10, 7468864), (13, 5745280), (16, 4668040), (20, 3734432), (26, 2872640), (32, 2334020), (40, 1867216), (47, 1589120), (52, 1436320), (64, 1167010), (65, 1149056), (80, 933608), (94, 794560), (104, 718160), (128, 583505), (130, 574528), (160, 466804), (188, 397280), (191, 391040), (208, 359080), (235, 317824), (260, 287264), (320, 233402), (376, 198640), (382, 195520), (416, 179540), (470, 158912), (520, 143632), (611, 122240), (640, 116701), (752, 99320), (764, 97760), (832, 89770), (940, 79456), (955, 78208), (1040, 71816), (1222, 61120), (1504, 49660), (1528, 48880), (1664, 44885), (1880, 39728), (1910, 39104), (2080, 35908), (2444, 30560), (2483, 30080), (3008, 24830), (3055, 24448), (3056, 24440), (3760, 19864), (3820, 19552), (4160, 17954), (4888, 15280), (4966, 15040), (6016, 12415), (6110, 12224), (6112, 12220), (7520, 9932), (7640, 9776), (8320, 8977)]