19178720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:684

約数の個数: 96

約数和(自身を含む): 52418016

約数和(自身を除く): 33239296

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 641, 680, 748, 880, 935, 1282, 1360, 1496, 1760, 1870, 2564, 2720, 2992, 3205, 3740, 5128, 5984, 6410, 7051, 7480, 10256, 10897, 12820, 14102, 14960, 20512, 21794, 25640, 28204, 29920, 35255, 43588, 51280, 54485, 56408, 70510, 87176, 102560, 108970, 112816, 119867, 141020, 174352, 217940, 225632, 239734, 282040, 348704, 435880, 479468, 564080, 599335, 871760, 958936, 1128160, 1198670, 1743520, 1917872, 2397340, 3835744, 4794680, 9589360, 19178720]

約数ペア:

[(1, 19178720), (2, 9589360), (4, 4794680), (5, 3835744), (8, 2397340), (10, 1917872), (11, 1743520), (16, 1198670), (17, 1128160), (20, 958936), (22, 871760), (32, 599335), (34, 564080), (40, 479468), (44, 435880), (55, 348704), (68, 282040), (80, 239734), (85, 225632), (88, 217940), (110, 174352), (136, 141020), (160, 119867), (170, 112816), (176, 108970), (187, 102560), (220, 87176), (272, 70510), (340, 56408), (352, 54485), (374, 51280), (440, 43588), (544, 35255), (641, 29920), (680, 28204), (748, 25640), (880, 21794), (935, 20512), (1282, 14960), (1360, 14102), (1496, 12820), (1760, 10897), (1870, 10256), (2564, 7480), (2720, 7051), (2992, 6410), (3205, 5984), (3740, 5128)]