432640

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^2$

素因数の和:49

約数の個数: 60

約数和(自身を含む): 1123254

約数和(自身を除く): 690614

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 512, 520, 640, 676, 832, 845, 1040, 1280, 1352, 1664, 1690, 2080, 2560, 2704, 3328, 3380, 4160, 5408, 6656, 6760, 8320, 10816, 13520, 16640, 21632, 27040, 33280, 43264, 54080, 86528, 108160, 216320, 432640]

約数ペア:

[(1, 432640), (2, 216320), (4, 108160), (5, 86528), (8, 54080), (10, 43264), (13, 33280), (16, 27040), (20, 21632), (26, 16640), (32, 13520), (40, 10816), (52, 8320), (64, 6760), (65, 6656), (80, 5408), (104, 4160), (128, 3380), (130, 3328), (160, 2704), (169, 2560), (208, 2080), (256, 1690), (260, 1664), (320, 1352), (338, 1280), (416, 1040), (512, 845), (520, 832), (640, 676)]