2009358620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{39047}}^1$

素因数の和:39170

約数の個数: 48

約数和(自身を含む): 4408363008

約数和(自身を除く): 2399004388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 2573, 5146, 10292, 12865, 25730, 39047, 51460, 78094, 156188, 195235, 390470, 780940, 1210457, 2420914, 3240901, 4841828, 6052285, 6481802, 12104570, 12963604, 16204505, 24209140, 32409010, 64818020, 100467931, 200935862, 401871724, 502339655, 1004679310, 2009358620]

約数ペア:

[(1, 2009358620), (2, 1004679310), (4, 502339655), (5, 401871724), (10, 200935862), (20, 100467931), (31, 64818020), (62, 32409010), (83, 24209140), (124, 16204505), (155, 12963604), (166, 12104570), (310, 6481802), (332, 6052285), (415, 4841828), (620, 3240901), (830, 2420914), (1660, 1210457), (2573, 780940), (5146, 390470), (10292, 195235), (12865, 156188), (25730, 78094), (39047, 51460)]