21973080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2579}}^1$

素因数の和:2664

約数の個数: 64

約数和(自身を含む): 66873600

約数和(自身を除く): 44900520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2579, 2840, 4260, 5158, 7737, 8520, 10316, 12895, 15474, 20632, 25790, 30948, 38685, 51580, 61896, 77370, 103160, 154740, 183109, 309480, 366218, 549327, 732436, 915545, 1098654, 1464872, 1831090, 2197308, 2746635, 3662180, 4394616, 5493270, 7324360, 10986540, 21973080]

約数ペア:

[(1, 21973080), (2, 10986540), (3, 7324360), (4, 5493270), (5, 4394616), (6, 3662180), (8, 2746635), (10, 2197308), (12, 1831090), (15, 1464872), (20, 1098654), (24, 915545), (30, 732436), (40, 549327), (60, 366218), (71, 309480), (120, 183109), (142, 154740), (213, 103160), (284, 77370), (355, 61896), (426, 51580), (568, 38685), (710, 30948), (852, 25790), (1065, 20632), (1420, 15474), (1704, 12895), (2130, 10316), (2579, 8520), (2840, 7737), (4260, 5158)]