81785600

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{983}}^1$

素因数の和:1022

約数の個数: 108

約数和(自身を含む): 218225616

約数和(自身を除く): 136440016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 983, 1040, 1280, 1300, 1600, 1664, 1966, 2080, 2600, 3200, 3328, 3932, 4160, 4915, 5200, 6400, 7864, 8320, 9830, 10400, 12779, 15728, 16640, 19660, 20800, 24575, 25558, 31456, 39320, 41600, 49150, 51116, 62912, 63895, 78640, 83200, 98300, 102232, 125824, 127790, 157280, 196600, 204464, 251648, 255580, 314560, 319475, 393200, 408928, 511160, 629120, 638950, 786400, 817856, 1022320, 1258240, 1277900, 1572800, 1635712, 2044640, 2555800, 3145600, 3271424, 4089280, 5111600, 6291200, 8178560, 10223200, 16357120, 20446400, 40892800, 81785600]

約数ペア:

[(1, 81785600), (2, 40892800), (4, 20446400), (5, 16357120), (8, 10223200), (10, 8178560), (13, 6291200), (16, 5111600), (20, 4089280), (25, 3271424), (26, 3145600), (32, 2555800), (40, 2044640), (50, 1635712), (52, 1572800), (64, 1277900), (65, 1258240), (80, 1022320), (100, 817856), (104, 786400), (128, 638950), (130, 629120), (160, 511160), (200, 408928), (208, 393200), (256, 319475), (260, 314560), (320, 255580), (325, 251648), (400, 204464), (416, 196600), (520, 157280), (640, 127790), (650, 125824), (800, 102232), (832, 98300), (983, 83200), (1040, 78640), (1280, 63895), (1300, 62912), (1600, 51116), (1664, 49150), (1966, 41600), (2080, 39320), (2600, 31456), (3200, 25558), (3328, 24575), (3932, 20800), (4160, 19660), (4915, 16640), (5200, 15728), (6400, 12779), (7864, 10400), (8320, 9830)]