31039540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1667}}^1$

素因数の和:1709

約数の個数: 72

約数和(自身を含む): 79863840

約数和(自身を除く): 48824300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1667, 1862, 2660, 3334, 3724, 4655, 6668, 8335, 9310, 11669, 16670, 18620, 23338, 31673, 33340, 46676, 58345, 63346, 81683, 116690, 126692, 158365, 163366, 221711, 233380, 316730, 326732, 408415, 443422, 633460, 816830, 886844, 1108555, 1551977, 1633660, 2217110, 3103954, 4434220, 6207908, 7759885, 15519770, 31039540]

約数ペア:

[(1, 31039540), (2, 15519770), (4, 7759885), (5, 6207908), (7, 4434220), (10, 3103954), (14, 2217110), (19, 1633660), (20, 1551977), (28, 1108555), (35, 886844), (38, 816830), (49, 633460), (70, 443422), (76, 408415), (95, 326732), (98, 316730), (133, 233380), (140, 221711), (190, 163366), (196, 158365), (245, 126692), (266, 116690), (380, 81683), (490, 63346), (532, 58345), (665, 46676), (931, 33340), (980, 31673), (1330, 23338), (1667, 18620), (1862, 16670), (2660, 11669), (3334, 9310), (3724, 8335), (4655, 6668)]