40128320

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1409}}^1$

素因数の和:1515

約数の個数: 56

約数和(自身を含む): 96697800

約数和(自身を除く): 56569480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 712, 890, 1409, 1424, 1780, 2818, 2848, 3560, 5636, 5696, 7045, 7120, 11272, 14090, 14240, 22544, 28180, 28480, 45088, 56360, 90176, 112720, 125401, 225440, 250802, 450880, 501604, 627005, 1003208, 1254010, 2006416, 2508020, 4012832, 5016040, 8025664, 10032080, 20064160, 40128320]

約数ペア:

[(1, 40128320), (2, 20064160), (4, 10032080), (5, 8025664), (8, 5016040), (10, 4012832), (16, 2508020), (20, 2006416), (32, 1254010), (40, 1003208), (64, 627005), (80, 501604), (89, 450880), (160, 250802), (178, 225440), (320, 125401), (356, 112720), (445, 90176), (712, 56360), (890, 45088), (1409, 28480), (1424, 28180), (1780, 22544), (2818, 14240), (2848, 14090), (3560, 11272), (5636, 7120), (5696, 7045)]