31483980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15901}}^1$

素因数の和:15927

約数の個数: 72

約数和(自身を含む): 104189904

約数和(自身を除く): 72705924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15901, 31802, 47703, 63604, 79505, 95406, 143109, 159010, 174911, 190812, 238515, 286218, 318020, 349822, 477030, 524733, 572436, 699644, 715545, 874555, 954060, 1049466, 1431090, 1574199, 1749110, 2098932, 2623665, 2862180, 3148398, 3498220, 5247330, 6296796, 7870995, 10494660, 15741990, 31483980]

約数ペア:

[(1, 31483980), (2, 15741990), (3, 10494660), (4, 7870995), (5, 6296796), (6, 5247330), (9, 3498220), (10, 3148398), (11, 2862180), (12, 2623665), (15, 2098932), (18, 1749110), (20, 1574199), (22, 1431090), (30, 1049466), (33, 954060), (36, 874555), (44, 715545), (45, 699644), (55, 572436), (60, 524733), (66, 477030), (90, 349822), (99, 318020), (110, 286218), (132, 238515), (165, 190812), (180, 174911), (198, 159010), (220, 143109), (330, 95406), (396, 79505), (495, 63604), (660, 47703), (990, 31802), (1980, 15901)]