396804320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{225457}}^1$

素因数の和:225483

約数の個数: 48

約数和(自身を含む): 1022677488

約数和(自身を除く): 625873168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 225457, 450914, 901828, 1127285, 1803656, 2254570, 2480027, 3607312, 4509140, 4960054, 7214624, 9018280, 9920108, 12400135, 18036560, 19840216, 24800270, 36073120, 39680432, 49600540, 79360864, 99201080, 198402160, 396804320]

約数ペア:

[(1, 396804320), (2, 198402160), (4, 99201080), (5, 79360864), (8, 49600540), (10, 39680432), (11, 36073120), (16, 24800270), (20, 19840216), (22, 18036560), (32, 12400135), (40, 9920108), (44, 9018280), (55, 7214624), (80, 4960054), (88, 4509140), (110, 3607312), (160, 2480027), (176, 2254570), (220, 1803656), (352, 1127285), (440, 901828), (880, 450914), (1760, 225457)]