78198640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4423}}^1$

素因数の和:4466

約数の個数: 80

約数和(自身を含む): 207361728

約数和(自身を除く): 129163088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4420, 4423, 8840, 8846, 17680, 17692, 22115, 35384, 44230, 57499, 70768, 75191, 88460, 114998, 150382, 176920, 229996, 287495, 300764, 353840, 375955, 459992, 574990, 601528, 751910, 919984, 977483, 1149980, 1203056, 1503820, 1954966, 2299960, 3007640, 3909932, 4599920, 4887415, 6015280, 7819864, 9774830, 15639728, 19549660, 39099320, 78198640]

約数ペア:

[(1, 78198640), (2, 39099320), (4, 19549660), (5, 15639728), (8, 9774830), (10, 7819864), (13, 6015280), (16, 4887415), (17, 4599920), (20, 3909932), (26, 3007640), (34, 2299960), (40, 1954966), (52, 1503820), (65, 1203056), (68, 1149980), (80, 977483), (85, 919984), (104, 751910), (130, 601528), (136, 574990), (170, 459992), (208, 375955), (221, 353840), (260, 300764), (272, 287495), (340, 229996), (442, 176920), (520, 150382), (680, 114998), (884, 88460), (1040, 75191), (1105, 70768), (1360, 57499), (1768, 44230), (2210, 35384), (3536, 22115), (4420, 17692), (4423, 17680), (8840, 8846)]