256943960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{70589}}^1$

素因数の和:70620

約数の個数: 64

約数和(自身を含む): 711547200

約数和(自身を除く): 454603240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 70589, 141178, 282356, 352945, 494123, 564712, 705890, 917657, 988246, 1411780, 1835314, 1976492, 2470615, 2823560, 3670628, 3952984, 4588285, 4941230, 6423599, 7341256, 9176570, 9882460, 12847198, 18353140, 19764920, 25694396, 32117995, 36706280, 51388792, 64235990, 128471980, 256943960]

約数ペア:

[(1, 256943960), (2, 128471980), (4, 64235990), (5, 51388792), (7, 36706280), (8, 32117995), (10, 25694396), (13, 19764920), (14, 18353140), (20, 12847198), (26, 9882460), (28, 9176570), (35, 7341256), (40, 6423599), (52, 4941230), (56, 4588285), (65, 3952984), (70, 3670628), (91, 2823560), (104, 2470615), (130, 1976492), (140, 1835314), (182, 1411780), (260, 988246), (280, 917657), (364, 705890), (455, 564712), (520, 494123), (728, 352945), (910, 282356), (1820, 141178), (3640, 70589)]