31392840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1997}}^1$

素因数の和:2142

約数の個数: 64

約数和(自身を含む): 94944960

約数和(自身を除く): 63552120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 1997, 2620, 3144, 3930, 3994, 5240, 5991, 7860, 7988, 9985, 11982, 15720, 15976, 19970, 23964, 29955, 39940, 47928, 59910, 79880, 119820, 239640, 261607, 523214, 784821, 1046428, 1308035, 1569642, 2092856, 2616070, 3139284, 3924105, 5232140, 6278568, 7848210, 10464280, 15696420, 31392840]

約数ペア:

[(1, 31392840), (2, 15696420), (3, 10464280), (4, 7848210), (5, 6278568), (6, 5232140), (8, 3924105), (10, 3139284), (12, 2616070), (15, 2092856), (20, 1569642), (24, 1308035), (30, 1046428), (40, 784821), (60, 523214), (120, 261607), (131, 239640), (262, 119820), (393, 79880), (524, 59910), (655, 47928), (786, 39940), (1048, 29955), (1310, 23964), (1572, 19970), (1965, 15976), (1997, 15720), (2620, 11982), (3144, 9985), (3930, 7988), (3994, 7860), (5240, 5991)]