25780840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1282

約数の個数: 64

約数和(自身を含む): 63452160

約数和(自身を除く): 37671320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1054, 1223, 1240, 2108, 2446, 2635, 4216, 4892, 5270, 6115, 9784, 10540, 12230, 20791, 21080, 24460, 37913, 41582, 48920, 75826, 83164, 103955, 151652, 166328, 189565, 207910, 303304, 379130, 415820, 644521, 758260, 831640, 1289042, 1516520, 2578084, 3222605, 5156168, 6445210, 12890420, 25780840]

約数ペア:

[(1, 25780840), (2, 12890420), (4, 6445210), (5, 5156168), (8, 3222605), (10, 2578084), (17, 1516520), (20, 1289042), (31, 831640), (34, 758260), (40, 644521), (62, 415820), (68, 379130), (85, 303304), (124, 207910), (136, 189565), (155, 166328), (170, 151652), (248, 103955), (310, 83164), (340, 75826), (527, 48920), (620, 41582), (680, 37913), (1054, 24460), (1223, 21080), (1240, 20791), (2108, 12230), (2446, 10540), (2635, 9784), (4216, 6115), (4892, 5270)]