28870400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:386

約数の個数: 108

約数和(自身を含む): 77177352

約数和(自身を除く): 48306952

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, 347, 400, 416, 520, 640, 650, 694, 800, 832, 1040, 1280, 1300, 1388, 1600, 1664, 1735, 2080, 2600, 2776, 3200, 3328, 3470, 4160, 4511, 5200, 5552, 6400, 6940, 8320, 8675, 9022, 10400, 11104, 13880, 16640, 17350, 18044, 20800, 22208, 22555, 27760, 34700, 36088, 41600, 44416, 45110, 55520, 69400, 72176, 83200, 88832, 90220, 111040, 112775, 138800, 144352, 180440, 222080, 225550, 277600, 288704, 360880, 444160, 451100, 555200, 577408, 721760, 902200, 1110400, 1154816, 1443520, 1804400, 2220800, 2887040, 3608800, 5774080, 7217600, 14435200, 28870400]

約数ペア:

[(1, 28870400), (2, 14435200), (4, 7217600), (5, 5774080), (8, 3608800), (10, 2887040), (13, 2220800), (16, 1804400), (20, 1443520), (25, 1154816), (26, 1110400), (32, 902200), (40, 721760), (50, 577408), (52, 555200), (64, 451100), (65, 444160), (80, 360880), (100, 288704), (104, 277600), (128, 225550), (130, 222080), (160, 180440), (200, 144352), (208, 138800), (256, 112775), (260, 111040), (320, 90220), (325, 88832), (347, 83200), (400, 72176), (416, 69400), (520, 55520), (640, 45110), (650, 44416), (694, 41600), (800, 36088), (832, 34700), (1040, 27760), (1280, 22555), (1300, 22208), (1388, 20800), (1600, 18044), (1664, 17350), (1735, 16640), (2080, 13880), (2600, 11104), (2776, 10400), (3200, 9022), (3328, 8675), (3470, 8320), (4160, 6940), (4511, 6400), (5200, 5552)]