67216860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{887}}^1$

素因数の和:1323

約数の個数: 72

約数和(自身を含む): 204605856

約数和(自身を除く): 137388996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 421, 842, 887, 1263, 1684, 1774, 2105, 2526, 2661, 3548, 3789, 4210, 4435, 5052, 5322, 6315, 7578, 7983, 8420, 8870, 10644, 12630, 13305, 15156, 15966, 17740, 18945, 25260, 26610, 31932, 37890, 39915, 53220, 75780, 79830, 159660, 373427, 746854, 1120281, 1493708, 1867135, 2240562, 3360843, 3734270, 4481124, 5601405, 6721686, 7468540, 11202810, 13443372, 16804215, 22405620, 33608430, 67216860]

約数ペア:

[(1, 67216860), (2, 33608430), (3, 22405620), (4, 16804215), (5, 13443372), (6, 11202810), (9, 7468540), (10, 6721686), (12, 5601405), (15, 4481124), (18, 3734270), (20, 3360843), (30, 2240562), (36, 1867135), (45, 1493708), (60, 1120281), (90, 746854), (180, 373427), (421, 159660), (842, 79830), (887, 75780), (1263, 53220), (1684, 39915), (1774, 37890), (2105, 31932), (2526, 26610), (2661, 25260), (3548, 18945), (3789, 17740), (4210, 15966), (4435, 15156), (5052, 13305), (5322, 12630), (6315, 10644), (7578, 8870), (7983, 8420)]