68968180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{643}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 150603264

約数和(自身を除く): 81635084

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 173, 310, 346, 620, 643, 692, 865, 1286, 1730, 2572, 3215, 3460, 5363, 6430, 10726, 12860, 19933, 21452, 26815, 39866, 53630, 79732, 99665, 107260, 111239, 199330, 222478, 398660, 444956, 556195, 1112390, 2224780, 3448409, 6896818, 13793636, 17242045, 34484090, 68968180]

約数ペア:

[(1, 68968180), (2, 34484090), (4, 17242045), (5, 13793636), (10, 6896818), (20, 3448409), (31, 2224780), (62, 1112390), (124, 556195), (155, 444956), (173, 398660), (310, 222478), (346, 199330), (620, 111239), (643, 107260), (692, 99665), (865, 79732), (1286, 53630), (1730, 39866), (2572, 26815), (3215, 21452), (3460, 19933), (5363, 12860), (6430, 10726)]