16381640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1201}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 41541120

約数和(自身を除く): 25159480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1201, 1240, 1364, 1705, 2402, 2728, 3410, 4804, 6005, 6820, 9608, 12010, 13211, 13640, 24020, 26422, 37231, 48040, 52844, 66055, 74462, 105688, 132110, 148924, 186155, 264220, 297848, 372310, 409541, 528440, 744620, 819082, 1489240, 1638164, 2047705, 3276328, 4095410, 8190820, 16381640]

約数ペア:

[(1, 16381640), (2, 8190820), (4, 4095410), (5, 3276328), (8, 2047705), (10, 1638164), (11, 1489240), (20, 819082), (22, 744620), (31, 528440), (40, 409541), (44, 372310), (55, 297848), (62, 264220), (88, 186155), (110, 148924), (124, 132110), (155, 105688), (220, 74462), (248, 66055), (310, 52844), (341, 48040), (440, 37231), (620, 26422), (682, 24020), (1201, 13640), (1240, 13211), (1364, 12010), (1705, 9608), (2402, 6820), (2728, 6005), (3410, 4804)]