15284860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 33626880

約数和(自身を除く): 18342020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 277, 310, 356, 445, 554, 620, 890, 1108, 1385, 1780, 2759, 2770, 5518, 5540, 8587, 11036, 13795, 17174, 24653, 27590, 34348, 42935, 49306, 55180, 85870, 98612, 123265, 171740, 246530, 493060, 764243, 1528486, 3056972, 3821215, 7642430, 15284860]

約数ペア:

[(1, 15284860), (2, 7642430), (4, 3821215), (5, 3056972), (10, 1528486), (20, 764243), (31, 493060), (62, 246530), (89, 171740), (124, 123265), (155, 98612), (178, 85870), (277, 55180), (310, 49306), (356, 42935), (445, 34348), (554, 27590), (620, 24653), (890, 17174), (1108, 13795), (1385, 11036), (1780, 8587), (2759, 5540), (2770, 5518)]