630291256

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 128

約数和(自身を含む): 1490227200

約数和(自身を除く): 859935944

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 97, 124, 133, 152, 194, 197, 217, 248, 266, 388, 394, 434, 532, 589, 679, 776, 788, 868, 1064, 1178, 1358, 1379, 1576, 1736, 1843, 2356, 2716, 2758, 3007, 3686, 3743, 4123, 4712, 5432, 5516, 6014, 6107, 7372, 7486, 8246, 11032, 12028, 12214, 12901, 14744, 14972, 16492, 19109, 21049, 24056, 24428, 25802, 26201, 29944, 32984, 38218, 42098, 42749, 48856, 51604, 52402, 57133, 76436, 84196, 85498, 103208, 104804, 114266, 116033, 133763, 152872, 168392, 170996, 209608, 228532, 232066, 267526, 341992, 363071, 399931, 457064, 464132, 535052, 592379, 726142, 799862, 812231, 928264, 1070104, 1184758, 1452284, 1599724, 1624462, 2369516, 2541497, 2904568, 3199448, 3248924, 4146653, 4739032, 5082994, 6497848, 8293306, 10165988, 11255201, 16586612, 20331976, 22510402, 33173224, 45020804, 78786407, 90041608, 157572814, 315145628, 630291256]

約数ペア:

[(1, 630291256), (2, 315145628), (4, 157572814), (7, 90041608), (8, 78786407), (14, 45020804), (19, 33173224), (28, 22510402), (31, 20331976), (38, 16586612), (56, 11255201), (62, 10165988), (76, 8293306), (97, 6497848), (124, 5082994), (133, 4739032), (152, 4146653), (194, 3248924), (197, 3199448), (217, 2904568), (248, 2541497), (266, 2369516), (388, 1624462), (394, 1599724), (434, 1452284), (532, 1184758), (589, 1070104), (679, 928264), (776, 812231), (788, 799862), (868, 726142), (1064, 592379), (1178, 535052), (1358, 464132), (1379, 457064), (1576, 399931), (1736, 363071), (1843, 341992), (2356, 267526), (2716, 232066), (2758, 228532), (3007, 209608), (3686, 170996), (3743, 168392), (4123, 152872), (4712, 133763), (5432, 116033), (5516, 114266), (6014, 104804), (6107, 103208), (7372, 85498), (7486, 84196), (8246, 76436), (11032, 57133), (12028, 52402), (12214, 51604), (12901, 48856), (14744, 42749), (14972, 42098), (16492, 38218), (19109, 32984), (21049, 29944), (24056, 26201), (24428, 25802)]