813804560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{1373}}^1$

素因数の和:1656

約数の個数: 80

約数和(自身を含む): 1962731520

約数和(自身を除く): 1148926960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 239, 248, 310, 478, 496, 620, 956, 1195, 1240, 1373, 1912, 2390, 2480, 2746, 3824, 4780, 5492, 6865, 7409, 9560, 10984, 13730, 14818, 19120, 21968, 27460, 29636, 37045, 42563, 54920, 59272, 74090, 85126, 109840, 118544, 148180, 170252, 212815, 296360, 328147, 340504, 425630, 592720, 656294, 681008, 851260, 1312588, 1640735, 1702520, 2625176, 3281470, 3405040, 5250352, 6562940, 10172557, 13125880, 20345114, 26251760, 40690228, 50862785, 81380456, 101725570, 162760912, 203451140, 406902280, 813804560]

約数ペア:

[(1, 813804560), (2, 406902280), (4, 203451140), (5, 162760912), (8, 101725570), (10, 81380456), (16, 50862785), (20, 40690228), (31, 26251760), (40, 20345114), (62, 13125880), (80, 10172557), (124, 6562940), (155, 5250352), (239, 3405040), (248, 3281470), (310, 2625176), (478, 1702520), (496, 1640735), (620, 1312588), (956, 851260), (1195, 681008), (1240, 656294), (1373, 592720), (1912, 425630), (2390, 340504), (2480, 328147), (2746, 296360), (3824, 212815), (4780, 170252), (5492, 148180), (6865, 118544), (7409, 109840), (9560, 85126), (10984, 74090), (13730, 59272), (14818, 54920), (19120, 42563), (21968, 37045), (27460, 29636)]