68475540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23291}}^1$

素因数の和:23317

約数の個数: 72

約数和(自身を含む): 223044192

約数和(自身を除く): 154568652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 23291, 46582, 69873, 93164, 116455, 139746, 163037, 232910, 279492, 326074, 349365, 465820, 489111, 652148, 698730, 815185, 978222, 1141259, 1397460, 1630370, 1956444, 2282518, 2445555, 3260740, 3423777, 4565036, 4891110, 5706295, 6847554, 9782220, 11412590, 13695108, 17118885, 22825180, 34237770, 68475540]

約数ペア:

[(1, 68475540), (2, 34237770), (3, 22825180), (4, 17118885), (5, 13695108), (6, 11412590), (7, 9782220), (10, 6847554), (12, 5706295), (14, 4891110), (15, 4565036), (20, 3423777), (21, 3260740), (28, 2445555), (30, 2282518), (35, 1956444), (42, 1630370), (49, 1397460), (60, 1141259), (70, 978222), (84, 815185), (98, 698730), (105, 652148), (140, 489111), (147, 465820), (196, 349365), (210, 326074), (245, 279492), (294, 232910), (420, 163037), (490, 139746), (588, 116455), (735, 93164), (980, 69873), (1470, 46582), (2940, 23291)]