81435960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4813}}^1$

素因数の和:4877

約数の個数: 96

約数和(自身を含む): 270354240

約数和(自身を除く): 188918280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 360, 376, 423, 470, 564, 705, 846, 940, 1128, 1410, 1692, 1880, 2115, 2820, 3384, 4230, 4813, 5640, 8460, 9626, 14439, 16920, 19252, 24065, 28878, 38504, 43317, 48130, 57756, 72195, 86634, 96260, 115512, 144390, 173268, 192520, 216585, 226211, 288780, 346536, 433170, 452422, 577560, 678633, 866340, 904844, 1131055, 1357266, 1732680, 1809688, 2035899, 2262110, 2714532, 3393165, 4071798, 4524220, 5429064, 6786330, 8143596, 9048440, 10179495, 13572660, 16287192, 20358990, 27145320, 40717980, 81435960]

約数ペア:

[(1, 81435960), (2, 40717980), (3, 27145320), (4, 20358990), (5, 16287192), (6, 13572660), (8, 10179495), (9, 9048440), (10, 8143596), (12, 6786330), (15, 5429064), (18, 4524220), (20, 4071798), (24, 3393165), (30, 2714532), (36, 2262110), (40, 2035899), (45, 1809688), (47, 1732680), (60, 1357266), (72, 1131055), (90, 904844), (94, 866340), (120, 678633), (141, 577560), (180, 452422), (188, 433170), (235, 346536), (282, 288780), (360, 226211), (376, 216585), (423, 192520), (470, 173268), (564, 144390), (705, 115512), (846, 96260), (940, 86634), (1128, 72195), (1410, 57756), (1692, 48130), (1880, 43317), (2115, 38504), (2820, 28878), (3384, 24065), (4230, 19252), (4813, 16920), (5640, 14439), (8460, 9626)]