20125300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 47793816

約数和(自身を除く): 27668516

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 113, 130, 137, 226, 260, 274, 325, 452, 548, 565, 650, 685, 1130, 1300, 1370, 1469, 1781, 2260, 2740, 2825, 2938, 3425, 3562, 5650, 5876, 6850, 7124, 7345, 8905, 11300, 13700, 14690, 15481, 17810, 29380, 30962, 35620, 36725, 44525, 61924, 73450, 77405, 89050, 146900, 154810, 178100, 201253, 309620, 387025, 402506, 774050, 805012, 1006265, 1548100, 2012530, 4025060, 5031325, 10062650, 20125300]

約数ペア:

[(1, 20125300), (2, 10062650), (4, 5031325), (5, 4025060), (10, 2012530), (13, 1548100), (20, 1006265), (25, 805012), (26, 774050), (50, 402506), (52, 387025), (65, 309620), (100, 201253), (113, 178100), (130, 154810), (137, 146900), (226, 89050), (260, 77405), (274, 73450), (325, 61924), (452, 44525), (548, 36725), (565, 35620), (650, 30962), (685, 29380), (1130, 17810), (1300, 15481), (1370, 14690), (1469, 13700), (1781, 11300), (2260, 8905), (2740, 7345), (2825, 7124), (2938, 6850), (3425, 5876), (3562, 5650)]