65478400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:826

約数の個数: 108

約数和(自身を含む): 174757912

約数和(自身を除く): 109279512

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, 787, 800, 832, 1040, 1280, 1300, 1574, 1600, 1664, 2080, 2600, 3148, 3200, 3328, 3935, 4160, 5200, 6296, 6400, 7870, 8320, 10231, 10400, 12592, 15740, 16640, 19675, 20462, 20800, 25184, 31480, 39350, 40924, 41600, 50368, 51155, 62960, 78700, 81848, 83200, 100736, 102310, 125920, 157400, 163696, 201472, 204620, 251840, 255775, 314800, 327392, 409240, 503680, 511550, 629600, 654784, 818480, 1007360, 1023100, 1259200, 1309568, 1636960, 2046200, 2518400, 2619136, 3273920, 4092400, 5036800, 6547840, 8184800, 13095680, 16369600, 32739200, 65478400]

約数ペア:

[(1, 65478400), (2, 32739200), (4, 16369600), (5, 13095680), (8, 8184800), (10, 6547840), (13, 5036800), (16, 4092400), (20, 3273920), (25, 2619136), (26, 2518400), (32, 2046200), (40, 1636960), (50, 1309568), (52, 1259200), (64, 1023100), (65, 1007360), (80, 818480), (100, 654784), (104, 629600), (128, 511550), (130, 503680), (160, 409240), (200, 327392), (208, 314800), (256, 255775), (260, 251840), (320, 204620), (325, 201472), (400, 163696), (416, 157400), (520, 125920), (640, 102310), (650, 100736), (787, 83200), (800, 81848), (832, 78700), (1040, 62960), (1280, 51155), (1300, 50368), (1574, 41600), (1600, 40924), (1664, 39350), (2080, 31480), (2600, 25184), (3148, 20800), (3200, 20462), (3328, 19675), (3935, 16640), (4160, 15740), (5200, 12592), (6296, 10400), (6400, 10231), (7870, 8320)]