2315678920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{4457}}^1$

素因数の和:4918

約数の個数: 64

約数和(自身を含む): 5392396800

約数和(自身を除く): 3076717880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 419, 620, 838, 1240, 1676, 2095, 3352, 4190, 4457, 8380, 8914, 12989, 16760, 17828, 22285, 25978, 35656, 44570, 51956, 64945, 89140, 103912, 129890, 138167, 178280, 259780, 276334, 519560, 552668, 690835, 1105336, 1381670, 1867483, 2763340, 3734966, 5526680, 7469932, 9337415, 14939864, 18674830, 37349660, 57891973, 74699320, 115783946, 231567892, 289459865, 463135784, 578919730, 1157839460, 2315678920]

約数ペア:

[(1, 2315678920), (2, 1157839460), (4, 578919730), (5, 463135784), (8, 289459865), (10, 231567892), (20, 115783946), (31, 74699320), (40, 57891973), (62, 37349660), (124, 18674830), (155, 14939864), (248, 9337415), (310, 7469932), (419, 5526680), (620, 3734966), (838, 2763340), (1240, 1867483), (1676, 1381670), (2095, 1105336), (3352, 690835), (4190, 552668), (4457, 519560), (8380, 276334), (8914, 259780), (12989, 178280), (16760, 138167), (17828, 129890), (22285, 103912), (25978, 89140), (35656, 64945), (44570, 51956)]