816506470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{70571}}^1$

素因数の和:70680

約数の個数: 32

約数和(自身を含む): 1600572960

約数和(自身を除く): 784066490

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 5785, 11570, 70571, 141142, 352855, 705710, 917423, 1834846, 4587115, 6280819, 9174230, 12561638, 31404095, 62808190, 81650647, 163301294, 408253235, 816506470]

約数ペア:

[(1, 816506470), (2, 408253235), (5, 163301294), (10, 81650647), (13, 62808190), (26, 31404095), (65, 12561638), (89, 9174230), (130, 6280819), (178, 4587115), (445, 1834846), (890, 917423), (1157, 705710), (2314, 352855), (5785, 141142), (11570, 70571)]