128109200

素因数分解:

$2^4\times 5^2\times {\mathrm{320273}}^1$

素因数の和:320291

約数の個数: 30

約数和(自身を含む): 307783314

約数和(自身を除く): 179674114

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 320273, 640546, 1281092, 1601365, 2562184, 3202730, 5124368, 6405460, 8006825, 12810920, 16013650, 25621840, 32027300, 64054600, 128109200]

約数ペア:

[(1, 128109200), (2, 64054600), (4, 32027300), (5, 25621840), (8, 16013650), (10, 12810920), (16, 8006825), (20, 6405460), (25, 5124368), (40, 3202730), (50, 2562184), (80, 1601365), (100, 1281092), (200, 640546), (400, 320273)]