2987920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:69

約数の個数: 80

約数和(自身を含む): 7968240

約数和(自身を除く): 4980320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 169, 170, 208, 221, 260, 272, 338, 340, 442, 520, 676, 680, 845, 884, 1040, 1105, 1352, 1360, 1690, 1768, 2197, 2210, 2704, 2873, 3380, 3536, 4394, 4420, 5746, 6760, 8788, 8840, 10985, 11492, 13520, 14365, 17576, 17680, 21970, 22984, 28730, 35152, 37349, 43940, 45968, 57460, 74698, 87880, 114920, 149396, 175760, 186745, 229840, 298792, 373490, 597584, 746980, 1493960, 2987920]

約数ペア:

[(1, 2987920), (2, 1493960), (4, 746980), (5, 597584), (8, 373490), (10, 298792), (13, 229840), (16, 186745), (17, 175760), (20, 149396), (26, 114920), (34, 87880), (40, 74698), (52, 57460), (65, 45968), (68, 43940), (80, 37349), (85, 35152), (104, 28730), (130, 22984), (136, 21970), (169, 17680), (170, 17576), (208, 14365), (221, 13520), (260, 11492), (272, 10985), (338, 8840), (340, 8788), (442, 6760), (520, 5746), (676, 4420), (680, 4394), (845, 3536), (884, 3380), (1040, 2873), (1105, 2704), (1352, 2210), (1360, 2197), (1690, 1768)]