168551780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 359553600

約数和(自身を除く): 191001820

約数列:

[1, 2, 4, 5, 10, 20, 149, 163, 298, 326, 347, 596, 652, 694, 745, 815, 1388, 1490, 1630, 1735, 2980, 3260, 3470, 6940, 24287, 48574, 51703, 56561, 97148, 103406, 113122, 121435, 206812, 226244, 242870, 258515, 282805, 485740, 517030, 565610, 1034060, 1131220, 8427589, 16855178, 33710356, 42137945, 84275890, 168551780]

約数ペア:

[(1, 168551780), (2, 84275890), (4, 42137945), (5, 33710356), (10, 16855178), (20, 8427589), (149, 1131220), (163, 1034060), (298, 565610), (326, 517030), (347, 485740), (596, 282805), (652, 258515), (694, 242870), (745, 226244), (815, 206812), (1388, 121435), (1490, 113122), (1630, 103406), (1735, 97148), (2980, 56561), (3260, 51703), (3470, 48574), (6940, 24287)]