1220312960

素因数分解:

$2^7\times 5^1\times {\mathrm{1906739}}^1$

素因数の和:1906758

約数の個数: 32

約数和(自身を含む): 2917312200

約数和(自身を除く): 1696999240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1906739, 3813478, 7626956, 9533695, 15253912, 19067390, 30507824, 38134780, 61015648, 76269560, 122031296, 152539120, 244062592, 305078240, 610156480, 1220312960]

約数ペア:

[(1, 1220312960), (2, 610156480), (4, 305078240), (5, 244062592), (8, 152539120), (10, 122031296), (16, 76269560), (20, 61015648), (32, 38134780), (40, 30507824), (64, 19067390), (80, 15253912), (128, 9533695), (160, 7626956), (320, 3813478), (640, 1906739)]