2017997960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{25339}}^1$

素因数の和:25542

約数の個数: 64

約数和(自身を含む): 4980830400

約数和(自身を除く): 2962832440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 905, 1448, 1810, 1991, 3620, 3982, 7240, 7964, 9955, 15928, 19910, 25339, 39820, 50678, 79640, 101356, 126695, 202712, 253390, 278729, 506780, 557458, 1013560, 1114916, 1393645, 2229832, 2787290, 4586359, 5574580, 9172718, 11149160, 18345436, 22931795, 36690872, 45863590, 50449949, 91727180, 100899898, 183454360, 201799796, 252249745, 403599592, 504499490, 1008998980, 2017997960]

約数ペア:

[(1, 2017997960), (2, 1008998980), (4, 504499490), (5, 403599592), (8, 252249745), (10, 201799796), (11, 183454360), (20, 100899898), (22, 91727180), (40, 50449949), (44, 45863590), (55, 36690872), (88, 22931795), (110, 18345436), (181, 11149160), (220, 9172718), (362, 5574580), (440, 4586359), (724, 2787290), (905, 2229832), (1448, 1393645), (1810, 1114916), (1991, 1013560), (3620, 557458), (3982, 506780), (7240, 278729), (7964, 253390), (9955, 202712), (15928, 126695), (19910, 101356), (25339, 79640), (39820, 50678)]