866664540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{687829}}^1$

素因数の和:687851

約数の個数: 72

約数和(自身を含む): 3004441440

約数和(自身を除く): 2137776900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 687829, 1375658, 2063487, 2751316, 3439145, 4126974, 4814803, 6190461, 6878290, 8253948, 9629606, 10317435, 12380922, 13756580, 14444409, 19259212, 20634870, 24074015, 24761844, 28888818, 30952305, 41269740, 43333227, 48148030, 57777636, 61904610, 72222045, 86666454, 96296060, 123809220, 144444090, 173332908, 216666135, 288888180, 433332270, 866664540]

約数ペア:

[(1, 866664540), (2, 433332270), (3, 288888180), (4, 216666135), (5, 173332908), (6, 144444090), (7, 123809220), (9, 96296060), (10, 86666454), (12, 72222045), (14, 61904610), (15, 57777636), (18, 48148030), (20, 43333227), (21, 41269740), (28, 30952305), (30, 28888818), (35, 24761844), (36, 24074015), (42, 20634870), (45, 19259212), (60, 14444409), (63, 13756580), (70, 12380922), (84, 10317435), (90, 9629606), (105, 8253948), (126, 6878290), (140, 6190461), (180, 4814803), (210, 4126974), (252, 3439145), (315, 2751316), (420, 2063487), (630, 1375658), (1260, 687829)]