19205680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 49059360

約数和(自身を除く): 29853680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 295, 313, 472, 520, 590, 626, 767, 944, 1040, 1180, 1252, 1534, 1565, 2360, 2504, 3068, 3130, 3835, 4069, 4720, 5008, 6136, 6260, 7670, 8138, 12272, 12520, 15340, 16276, 18467, 20345, 25040, 30680, 32552, 36934, 40690, 61360, 65104, 73868, 81380, 92335, 147736, 162760, 184670, 240071, 295472, 325520, 369340, 480142, 738680, 960284, 1200355, 1477360, 1920568, 2400710, 3841136, 4801420, 9602840, 19205680]

約数ペア:

[(1, 19205680), (2, 9602840), (4, 4801420), (5, 3841136), (8, 2400710), (10, 1920568), (13, 1477360), (16, 1200355), (20, 960284), (26, 738680), (40, 480142), (52, 369340), (59, 325520), (65, 295472), (80, 240071), (104, 184670), (118, 162760), (130, 147736), (208, 92335), (236, 81380), (260, 73868), (295, 65104), (313, 61360), (472, 40690), (520, 36934), (590, 32552), (626, 30680), (767, 25040), (944, 20345), (1040, 18467), (1180, 16276), (1252, 15340), (1534, 12520), (1565, 12272), (2360, 8138), (2504, 7670), (3068, 6260), (3130, 6136), (3835, 5008), (4069, 4720)]