99181720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{523}}^1$

素因数の和:976

約数の個数: 64

約数和(自身を含む): 244477440

約数和(自身を除く): 145295720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 431, 440, 523, 862, 1046, 1724, 2092, 2155, 2615, 3448, 4184, 4310, 4741, 5230, 5753, 8620, 9482, 10460, 11506, 17240, 18964, 20920, 23012, 23705, 28765, 37928, 46024, 47410, 57530, 94820, 115060, 189640, 225413, 230120, 450826, 901652, 1127065, 1803304, 2254130, 2479543, 4508260, 4959086, 9016520, 9918172, 12397715, 19836344, 24795430, 49590860, 99181720]

約数ペア:

[(1, 99181720), (2, 49590860), (4, 24795430), (5, 19836344), (8, 12397715), (10, 9918172), (11, 9016520), (20, 4959086), (22, 4508260), (40, 2479543), (44, 2254130), (55, 1803304), (88, 1127065), (110, 901652), (220, 450826), (431, 230120), (440, 225413), (523, 189640), (862, 115060), (1046, 94820), (1724, 57530), (2092, 47410), (2155, 46024), (2615, 37928), (3448, 28765), (4184, 23705), (4310, 23012), (4741, 20920), (5230, 18964), (5753, 17240), (8620, 11506), (9482, 10460)]