257341640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{733}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 592954560

約数和(自身を除く): 335612920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 131, 134, 262, 268, 335, 524, 536, 655, 670, 733, 1048, 1310, 1340, 1466, 2620, 2680, 2932, 3665, 5240, 5864, 7330, 8777, 14660, 17554, 29320, 35108, 43885, 49111, 70216, 87770, 96023, 98222, 175540, 192046, 196444, 245555, 351080, 384092, 392888, 480115, 491110, 768184, 960230, 982220, 1920460, 1964440, 3840920, 6433541, 12867082, 25734164, 32167705, 51468328, 64335410, 128670820, 257341640]

約数ペア:

[(1, 257341640), (2, 128670820), (4, 64335410), (5, 51468328), (8, 32167705), (10, 25734164), (20, 12867082), (40, 6433541), (67, 3840920), (131, 1964440), (134, 1920460), (262, 982220), (268, 960230), (335, 768184), (524, 491110), (536, 480115), (655, 392888), (670, 384092), (733, 351080), (1048, 245555), (1310, 196444), (1340, 192046), (1466, 175540), (2620, 98222), (2680, 96023), (2932, 87770), (3665, 70216), (5240, 49111), (5864, 43885), (7330, 35108), (8777, 29320), (14660, 17554)]