80104420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 187689600

約数和(自身を除く): 107585180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 220, 242, 316, 395, 419, 484, 605, 790, 838, 869, 1210, 1580, 1676, 1738, 2095, 2420, 3476, 4190, 4345, 4609, 8380, 8690, 9218, 9559, 17380, 18436, 19118, 23045, 33101, 38236, 46090, 47795, 50699, 66202, 92180, 95590, 101398, 132404, 165505, 191180, 202796, 253495, 331010, 364111, 506990, 662020, 728222, 1013980, 1456444, 1820555, 3641110, 4005221, 7282220, 8010442, 16020884, 20026105, 40052210, 80104420]

約数ペア:

[(1, 80104420), (2, 40052210), (4, 20026105), (5, 16020884), (10, 8010442), (11, 7282220), (20, 4005221), (22, 3641110), (44, 1820555), (55, 1456444), (79, 1013980), (110, 728222), (121, 662020), (158, 506990), (220, 364111), (242, 331010), (316, 253495), (395, 202796), (419, 191180), (484, 165505), (605, 132404), (790, 101398), (838, 95590), (869, 92180), (1210, 66202), (1580, 50699), (1676, 47795), (1738, 46090), (2095, 38236), (2420, 33101), (3476, 23045), (4190, 19118), (4345, 18436), (4609, 17380), (8380, 9559), (8690, 9218)]