15951980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2339}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 21787540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2339, 3410, 4678, 6820, 9356, 11695, 23390, 25729, 46780, 51458, 72509, 102916, 128645, 145018, 257290, 290036, 362545, 514580, 725090, 797599, 1450180, 1595198, 3190396, 3987995, 7975990, 15951980]

約数ペア:

[(1, 15951980), (2, 7975990), (4, 3987995), (5, 3190396), (10, 1595198), (11, 1450180), (20, 797599), (22, 725090), (31, 514580), (44, 362545), (55, 290036), (62, 257290), (110, 145018), (124, 128645), (155, 102916), (220, 72509), (310, 51458), (341, 46780), (620, 25729), (682, 23390), (1364, 11695), (1705, 9356), (2339, 6820), (3410, 4678)]