2015778875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 96

約数和(自身を含む): 3012691968

約数和(自身を除く): 996913093

約数列:

[1, 5, 11, 19, 25, 31, 55, 95, 125, 131, 155, 209, 275, 341, 361, 475, 589, 655, 775, 1045, 1375, 1441, 1705, 1805, 2375, 2489, 2945, 3275, 3875, 3971, 4061, 5225, 6479, 7205, 8525, 9025, 11191, 12445, 14725, 16375, 19855, 20305, 26125, 27379, 32395, 36025, 42625, 44671, 45125, 47291, 55955, 62225, 73625, 77159, 99275, 101525, 123101, 136895, 161975, 180125, 223355, 236455, 279775, 311125, 385795, 496375, 507625, 520201, 615505, 684475, 809875, 848749, 1116775, 1182275, 1398875, 1466021, 1928975, 2601005, 3077525, 3422375, 4243745, 5583875, 5911375, 7330105, 9644875, 13005025, 15387625, 16126231, 21218725, 36650525, 65025125, 80631155, 106093625, 183252625, 403155775, 2015778875]

約数ペア:

[(1, 2015778875), (5, 403155775), (11, 183252625), (19, 106093625), (25, 80631155), (31, 65025125), (55, 36650525), (95, 21218725), (125, 16126231), (131, 15387625), (155, 13005025), (209, 9644875), (275, 7330105), (341, 5911375), (361, 5583875), (475, 4243745), (589, 3422375), (655, 3077525), (775, 2601005), (1045, 1928975), (1375, 1466021), (1441, 1398875), (1705, 1182275), (1805, 1116775), (2375, 848749), (2489, 809875), (2945, 684475), (3275, 615505), (3875, 520201), (3971, 507625), (4061, 496375), (5225, 385795), (6479, 311125), (7205, 279775), (8525, 236455), (9025, 223355), (11191, 180125), (12445, 161975), (14725, 136895), (16375, 123101), (19855, 101525), (20305, 99275), (26125, 77159), (27379, 73625), (32395, 62225), (36025, 55955), (42625, 47291), (44671, 45125)]