31349220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{10663}}^1$

素因数の和:10689

約数の個数: 72

約数和(自身を含む): 102118464

約数和(自身を除く): 70769244

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, 10663, 21326, 31989, 42652, 53315, 63978, 74641, 106630, 127956, 149282, 159945, 213260, 223923, 298564, 319890, 373205, 447846, 522487, 639780, 746410, 895692, 1044974, 1119615, 1492820, 1567461, 2089948, 2239230, 2612435, 3134922, 4478460, 5224870, 6269844, 7837305, 10449740, 15674610, 31349220]

約数ペア:

[(1, 31349220), (2, 15674610), (3, 10449740), (4, 7837305), (5, 6269844), (6, 5224870), (7, 4478460), (10, 3134922), (12, 2612435), (14, 2239230), (15, 2089948), (20, 1567461), (21, 1492820), (28, 1119615), (30, 1044974), (35, 895692), (42, 746410), (49, 639780), (60, 522487), (70, 447846), (84, 373205), (98, 319890), (105, 298564), (140, 223923), (147, 213260), (196, 159945), (210, 149282), (245, 127956), (294, 106630), (420, 74641), (490, 63978), (588, 53315), (735, 42652), (980, 31989), (1470, 21326), (2940, 10663)]