63939980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7933}}^1$

素因数の和:7986

約数の個数: 48

約数和(自身を含む): 149286144

約数和(自身を除く): 85346164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 7933, 8060, 15866, 31732, 39665, 79330, 103129, 158660, 206258, 245923, 412516, 491846, 515645, 983692, 1031290, 1229615, 2062580, 2459230, 3196999, 4918460, 6393998, 12787996, 15984995, 31969990, 63939980]

約数ペア:

[(1, 63939980), (2, 31969990), (4, 15984995), (5, 12787996), (10, 6393998), (13, 4918460), (20, 3196999), (26, 2459230), (31, 2062580), (52, 1229615), (62, 1031290), (65, 983692), (124, 515645), (130, 491846), (155, 412516), (260, 245923), (310, 206258), (403, 158660), (620, 103129), (806, 79330), (1612, 39665), (2015, 31732), (4030, 15866), (7933, 8060)]