138281640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{164621}}^1$

素因数の和:164642

約数の個数: 64

約数和(自身を含む): 474111360

約数和(自身を除く): 335829720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 164621, 329242, 493863, 658484, 823105, 987726, 1152347, 1316968, 1646210, 1975452, 2304694, 2469315, 3292420, 3457041, 3950904, 4609388, 4938630, 5761735, 6584840, 6914082, 9218776, 9877260, 11523470, 13828164, 17285205, 19754520, 23046940, 27656328, 34570410, 46093880, 69140820, 138281640]

約数ペア:

[(1, 138281640), (2, 69140820), (3, 46093880), (4, 34570410), (5, 27656328), (6, 23046940), (7, 19754520), (8, 17285205), (10, 13828164), (12, 11523470), (14, 9877260), (15, 9218776), (20, 6914082), (21, 6584840), (24, 5761735), (28, 4938630), (30, 4609388), (35, 3950904), (40, 3457041), (42, 3292420), (56, 2469315), (60, 2304694), (70, 1975452), (84, 1646210), (105, 1316968), (120, 1152347), (140, 987726), (168, 823105), (210, 658484), (280, 493863), (420, 329242), (840, 164621)]