81907380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3583}}^1$

素因数の和:3725

約数の個数: 72

約数和(自身を含む): 250478592

約数和(自身を除く): 168571212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 3583, 3810, 4572, 5715, 7166, 7620, 10749, 11430, 14332, 17915, 21498, 22860, 32247, 35830, 42996, 53745, 64494, 71660, 107490, 128988, 161235, 214980, 322470, 455041, 644940, 910082, 1365123, 1820164, 2275205, 2730246, 4095369, 4550410, 5460492, 6825615, 8190738, 9100820, 13651230, 16381476, 20476845, 27302460, 40953690, 81907380]

約数ペア:

[(1, 81907380), (2, 40953690), (3, 27302460), (4, 20476845), (5, 16381476), (6, 13651230), (9, 9100820), (10, 8190738), (12, 6825615), (15, 5460492), (18, 4550410), (20, 4095369), (30, 2730246), (36, 2275205), (45, 1820164), (60, 1365123), (90, 910082), (127, 644940), (180, 455041), (254, 322470), (381, 214980), (508, 161235), (635, 128988), (762, 107490), (1143, 71660), (1270, 64494), (1524, 53745), (1905, 42996), (2286, 35830), (2540, 32247), (3583, 22860), (3810, 21498), (4572, 17915), (5715, 14332), (7166, 11430), (7620, 10749)]