666518990

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1\times {\mathrm{1993}}^1$

素因数の和:2684

約数の個数: 32

約数和(自身を含む): 1224922176

約数和(自身を除く): 558403186

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 631, 1262, 1993, 3155, 3986, 6310, 9965, 19930, 33443, 66886, 105629, 167215, 211258, 334430, 528145, 1056290, 1257583, 2515166, 6287915, 12575830, 66651899, 133303798, 333259495, 666518990]

約数ペア:

[(1, 666518990), (2, 333259495), (5, 133303798), (10, 66651899), (53, 12575830), (106, 6287915), (265, 2515166), (530, 1257583), (631, 1056290), (1262, 528145), (1993, 334430), (3155, 211258), (3986, 167215), (6310, 105629), (9965, 66886), (19930, 33443)]