20852910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{457}}^1$

素因数の和:499

約数の個数: 96

約数和(自身を含む): 60346080

約数和(自身を除く): 39493170

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 130, 135, 169, 195, 234, 270, 338, 351, 390, 457, 507, 585, 702, 845, 914, 1014, 1170, 1371, 1521, 1690, 1755, 2285, 2535, 2742, 3042, 3510, 4113, 4563, 4570, 5070, 5941, 6855, 7605, 8226, 9126, 11882, 12339, 13710, 15210, 17823, 20565, 22815, 24678, 29705, 35646, 41130, 45630, 53469, 59410, 61695, 77233, 89115, 106938, 123390, 154466, 160407, 178230, 231699, 267345, 320814, 386165, 463398, 534690, 695097, 772330, 802035, 1158495, 1390194, 1604070, 2085291, 2316990, 3475485, 4170582, 6950970, 10426455, 20852910]

約数ペア:

[(1, 20852910), (2, 10426455), (3, 6950970), (5, 4170582), (6, 3475485), (9, 2316990), (10, 2085291), (13, 1604070), (15, 1390194), (18, 1158495), (26, 802035), (27, 772330), (30, 695097), (39, 534690), (45, 463398), (54, 386165), (65, 320814), (78, 267345), (90, 231699), (117, 178230), (130, 160407), (135, 154466), (169, 123390), (195, 106938), (234, 89115), (270, 77233), (338, 61695), (351, 59410), (390, 53469), (457, 45630), (507, 41130), (585, 35646), (702, 29705), (845, 24678), (914, 22815), (1014, 20565), (1170, 17823), (1371, 15210), (1521, 13710), (1690, 12339), (1755, 11882), (2285, 9126), (2535, 8226), (2742, 7605), (3042, 6855), (3510, 5941), (4113, 5070), (4563, 4570)]