28341440

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2857}}^1$

素因数の和:2905

約数の個数: 56

約数和(自身を含む): 69689472

約数和(自身を除く): 41348032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 2857, 4960, 5714, 9920, 11428, 14285, 22856, 28570, 45712, 57140, 88567, 91424, 114280, 177134, 182848, 228560, 354268, 442835, 457120, 708536, 885670, 914240, 1417072, 1771340, 2834144, 3542680, 5668288, 7085360, 14170720, 28341440]

約数ペア:

[(1, 28341440), (2, 14170720), (4, 7085360), (5, 5668288), (8, 3542680), (10, 2834144), (16, 1771340), (20, 1417072), (31, 914240), (32, 885670), (40, 708536), (62, 457120), (64, 442835), (80, 354268), (124, 228560), (155, 182848), (160, 177134), (248, 114280), (310, 91424), (320, 88567), (496, 57140), (620, 45712), (992, 28570), (1240, 22856), (1984, 14285), (2480, 11428), (2857, 9920), (4960, 5714)]