31076780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1669}}^1$

素因数の和:1711

約数の個数: 72

約数和(自身を含む): 79959600

約数和(自身を除く): 48882820

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, 1669, 1862, 2660, 3338, 3724, 4655, 6676, 8345, 9310, 11683, 16690, 18620, 23366, 31711, 33380, 46732, 58415, 63422, 81781, 116830, 126844, 158555, 163562, 221977, 233660, 317110, 327124, 408905, 443954, 634220, 817810, 887908, 1109885, 1553839, 1635620, 2219770, 3107678, 4439540, 6215356, 7769195, 15538390, 31076780]

約数ペア:

[(1, 31076780), (2, 15538390), (4, 7769195), (5, 6215356), (7, 4439540), (10, 3107678), (14, 2219770), (19, 1635620), (20, 1553839), (28, 1109885), (35, 887908), (38, 817810), (49, 634220), (70, 443954), (76, 408905), (95, 327124), (98, 317110), (133, 233660), (140, 221977), (190, 163562), (196, 158555), (245, 126844), (266, 116830), (380, 81781), (490, 63422), (532, 58415), (665, 46732), (931, 33380), (980, 31711), (1330, 23366), (1669, 18620), (1862, 16690), (2660, 11683), (3338, 9310), (3724, 8345), (4655, 6676)]