201513640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1202

約数の個数: 64

約数和(自身を含む): 471375360

約数和(自身を除く): 269861720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 620, 652, 815, 997, 1240, 1304, 1630, 1994, 3260, 3988, 4985, 5053, 6520, 7976, 9970, 10106, 19940, 20212, 25265, 30907, 39880, 40424, 50530, 61814, 101060, 123628, 154535, 162511, 202120, 247256, 309070, 325022, 618140, 650044, 812555, 1236280, 1300088, 1625110, 3250220, 5037841, 6500440, 10075682, 20151364, 25189205, 40302728, 50378410, 100756820, 201513640]

約数ペア:

[(1, 201513640), (2, 100756820), (4, 50378410), (5, 40302728), (8, 25189205), (10, 20151364), (20, 10075682), (31, 6500440), (40, 5037841), (62, 3250220), (124, 1625110), (155, 1300088), (163, 1236280), (248, 812555), (310, 650044), (326, 618140), (620, 325022), (652, 309070), (815, 247256), (997, 202120), (1240, 162511), (1304, 154535), (1630, 123628), (1994, 101060), (3260, 61814), (3988, 50530), (4985, 40424), (5053, 39880), (6520, 30907), (7976, 25265), (9970, 20212), (10106, 19940)]