20163383775

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{463}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 38954173440

約数和(自身を除く): 18790789665

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 61, 75, 95, 167, 171, 183, 225, 285, 305, 463, 475, 501, 549, 835, 855, 915, 1159, 1389, 1425, 1503, 1525, 2315, 2505, 2745, 3173, 3477, 4167, 4175, 4275, 4575, 5795, 6945, 7515, 8797, 9519, 10187, 10431, 11575, 12525, 13725, 15865, 17385, 20835, 26391, 28243, 28557, 28975, 30561, 34725, 37575, 43985, 47595, 50935, 52155, 77321, 79173, 79325, 84729, 86925, 91683, 104175, 131955, 141215, 142785, 152805, 193553, 219925, 231963, 237975, 254187, 254675, 260775, 386605, 395865, 423645, 458415, 536617, 580659, 659775, 695889, 706075, 713925, 764025, 967765, 1159815, 1270935, 1469099, 1609851, 1741977, 1933025, 1979325, 2118225, 2292075, 2683085, 2903295, 3479445, 4407297, 4716581, 4829553, 4838825, 5799075, 6354675, 7345495, 8049255, 8709885, 13221891, 13415425, 14149743, 14516475, 17397225, 22036485, 23582905, 24147765, 36727475, 40246275, 42449229, 43549425, 66109455, 70748715, 89615039, 110182425, 117914525, 120738825, 212246145, 268845117, 330547275, 353743575, 448075195, 806535351, 1061230725, 1344225585, 2240375975, 4032676755, 6721127925, 20163383775]

約数ペア:

[(1, 20163383775), (3, 6721127925), (5, 4032676755), (9, 2240375975), (15, 1344225585), (19, 1061230725), (25, 806535351), (45, 448075195), (57, 353743575), (61, 330547275), (75, 268845117), (95, 212246145), (167, 120738825), (171, 117914525), (183, 110182425), (225, 89615039), (285, 70748715), (305, 66109455), (463, 43549425), (475, 42449229), (501, 40246275), (549, 36727475), (835, 24147765), (855, 23582905), (915, 22036485), (1159, 17397225), (1389, 14516475), (1425, 14149743), (1503, 13415425), (1525, 13221891), (2315, 8709885), (2505, 8049255), (2745, 7345495), (3173, 6354675), (3477, 5799075), (4167, 4838825), (4175, 4829553), (4275, 4716581), (4575, 4407297), (5795, 3479445), (6945, 2903295), (7515, 2683085), (8797, 2292075), (9519, 2118225), (10187, 1979325), (10431, 1933025), (11575, 1741977), (12525, 1609851), (13725, 1469099), (15865, 1270935), (17385, 1159815), (20835, 967765), (26391, 764025), (28243, 713925), (28557, 706075), (28975, 695889), (30561, 659775), (34725, 580659), (37575, 536617), (43985, 458415), (47595, 423645), (50935, 395865), (52155, 386605), (77321, 260775), (79173, 254675), (79325, 254187), (84729, 237975), (86925, 231963), (91683, 219925), (104175, 193553), (131955, 152805), (141215, 142785)]