212913280

素因数分解:

$2^7\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1201}}^1$

素因数の和:1497

約数の個数: 64

約数和(自身を含む): 511258680

約数和(自身を除く): 298345400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 277, 320, 554, 640, 1108, 1201, 1385, 2216, 2402, 2770, 4432, 4804, 5540, 6005, 8864, 9608, 11080, 12010, 17728, 19216, 22160, 24020, 35456, 38432, 44320, 48040, 76864, 88640, 96080, 153728, 177280, 192160, 332677, 384320, 665354, 768640, 1330708, 1663385, 2661416, 3326770, 5322832, 6653540, 10645664, 13307080, 21291328, 26614160, 42582656, 53228320, 106456640, 212913280]

約数ペア:

[(1, 212913280), (2, 106456640), (4, 53228320), (5, 42582656), (8, 26614160), (10, 21291328), (16, 13307080), (20, 10645664), (32, 6653540), (40, 5322832), (64, 3326770), (80, 2661416), (128, 1663385), (160, 1330708), (277, 768640), (320, 665354), (554, 384320), (640, 332677), (1108, 192160), (1201, 177280), (1385, 153728), (2216, 96080), (2402, 88640), (2770, 76864), (4432, 48040), (4804, 44320), (5540, 38432), (6005, 35456), (8864, 24020), (9608, 22160), (11080, 19216), (12010, 17728)]