31383820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6353}}^1$

素因数の和:6394

約数の個数: 48

約数和(自身を含む): 74723040

約数和(自身を除く): 43339220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 6353, 12706, 25412, 31765, 63530, 82589, 120707, 127060, 165178, 241414, 330356, 412945, 482828, 603535, 825890, 1207070, 1569191, 1651780, 2414140, 3138382, 6276764, 7845955, 15691910, 31383820]

約数ペア:

[(1, 31383820), (2, 15691910), (4, 7845955), (5, 6276764), (10, 3138382), (13, 2414140), (19, 1651780), (20, 1569191), (26, 1207070), (38, 825890), (52, 603535), (65, 482828), (76, 412945), (95, 330356), (130, 241414), (190, 165178), (247, 127060), (260, 120707), (380, 82589), (494, 63530), (988, 31765), (1235, 25412), (2470, 12706), (4940, 6353)]