641993688

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{20219}}^1$

素因数の和:20251

約数の個数: 120

約数和(自身を含む): 2091860100

約数和(自身を除く): 1449866412

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 81, 84, 98, 108, 126, 147, 162, 168, 189, 196, 216, 252, 294, 324, 378, 392, 441, 504, 567, 588, 648, 756, 882, 1134, 1176, 1323, 1512, 1764, 2268, 2646, 3528, 3969, 4536, 5292, 7938, 10584, 15876, 20219, 31752, 40438, 60657, 80876, 121314, 141533, 161752, 181971, 242628, 283066, 363942, 424599, 485256, 545913, 566132, 727884, 849198, 990731, 1091826, 1132264, 1273797, 1455768, 1637739, 1698396, 1981462, 2183652, 2547594, 2972193, 3275478, 3396792, 3821391, 3962924, 4367304, 5095188, 5944386, 6550956, 7642782, 7925848, 8916579, 10190376, 11464173, 11888772, 13101912, 15285564, 17833158, 22928346, 23777544, 26749737, 30571128, 35666316, 45856692, 53499474, 71332632, 80249211, 91713384, 106998948, 160498422, 213997896, 320996844, 641993688]

約数ペア:

[(1, 641993688), (2, 320996844), (3, 213997896), (4, 160498422), (6, 106998948), (7, 91713384), (8, 80249211), (9, 71332632), (12, 53499474), (14, 45856692), (18, 35666316), (21, 30571128), (24, 26749737), (27, 23777544), (28, 22928346), (36, 17833158), (42, 15285564), (49, 13101912), (54, 11888772), (56, 11464173), (63, 10190376), (72, 8916579), (81, 7925848), (84, 7642782), (98, 6550956), (108, 5944386), (126, 5095188), (147, 4367304), (162, 3962924), (168, 3821391), (189, 3396792), (196, 3275478), (216, 2972193), (252, 2547594), (294, 2183652), (324, 1981462), (378, 1698396), (392, 1637739), (441, 1455768), (504, 1273797), (567, 1132264), (588, 1091826), (648, 990731), (756, 849198), (882, 727884), (1134, 566132), (1176, 545913), (1323, 485256), (1512, 424599), (1764, 363942), (2268, 283066), (2646, 242628), (3528, 181971), (3969, 161752), (4536, 141533), (5292, 121314), (7938, 80876), (10584, 60657), (15876, 40438), (20219, 31752)]