19191640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 49805280

約数和(自身を除く): 30613640

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 167, 169, 170, 221, 260, 334, 338, 340, 442, 520, 668, 676, 680, 835, 845, 884, 1105, 1336, 1352, 1670, 1690, 1768, 2171, 2210, 2839, 2873, 3340, 3380, 4342, 4420, 5678, 5746, 6680, 6760, 8684, 8840, 10855, 11356, 11492, 14195, 14365, 17368, 21710, 22712, 22984, 28223, 28390, 28730, 36907, 43420, 56446, 56780, 57460, 73814, 86840, 112892, 113560, 114920, 141115, 147628, 184535, 225784, 282230, 295256, 369070, 479791, 564460, 738140, 959582, 1128920, 1476280, 1919164, 2398955, 3838328, 4797910, 9595820, 19191640]

約数ペア:

[(1, 19191640), (2, 9595820), (4, 4797910), (5, 3838328), (8, 2398955), (10, 1919164), (13, 1476280), (17, 1128920), (20, 959582), (26, 738140), (34, 564460), (40, 479791), (52, 369070), (65, 295256), (68, 282230), (85, 225784), (104, 184535), (130, 147628), (136, 141115), (167, 114920), (169, 113560), (170, 112892), (221, 86840), (260, 73814), (334, 57460), (338, 56780), (340, 56446), (442, 43420), (520, 36907), (668, 28730), (676, 28390), (680, 28223), (835, 22984), (845, 22712), (884, 21710), (1105, 17368), (1336, 14365), (1352, 14195), (1670, 11492), (1690, 11356), (1768, 10855), (2171, 8840), (2210, 8684), (2839, 6760), (2873, 6680), (3340, 5746), (3380, 5678), (4342, 4420)]