643370868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{19489}}^1$

素因数の和:19637

約数の個数: 72

約数和(自身を含む): 1872911040

約数和(自身を除く): 1229540172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 131, 252, 262, 393, 524, 786, 917, 1179, 1572, 1834, 2358, 2751, 3668, 4716, 5502, 8253, 11004, 16506, 19489, 33012, 38978, 58467, 77956, 116934, 136423, 175401, 233868, 272846, 350802, 409269, 545692, 701604, 818538, 1227807, 1637076, 2455614, 2553059, 4911228, 5106118, 7659177, 10212236, 15318354, 17871413, 22977531, 30636708, 35742826, 45955062, 53614239, 71485652, 91910124, 107228478, 160842717, 214456956, 321685434, 643370868]

約数ペア:

[(1, 643370868), (2, 321685434), (3, 214456956), (4, 160842717), (6, 107228478), (7, 91910124), (9, 71485652), (12, 53614239), (14, 45955062), (18, 35742826), (21, 30636708), (28, 22977531), (36, 17871413), (42, 15318354), (63, 10212236), (84, 7659177), (126, 5106118), (131, 4911228), (252, 2553059), (262, 2455614), (393, 1637076), (524, 1227807), (786, 818538), (917, 701604), (1179, 545692), (1572, 409269), (1834, 350802), (2358, 272846), (2751, 233868), (3668, 175401), (4716, 136423), (5502, 116934), (8253, 77956), (11004, 58467), (16506, 38978), (19489, 33012)]