642745692

素因数分解:

$2^2\times 3^5\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 144

約数和(自身を含む): 1767048192

約数和(自身を除く): 1124302500

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 81, 83, 93, 108, 124, 162, 166, 186, 243, 249, 257, 279, 324, 332, 372, 486, 498, 514, 558, 747, 771, 837, 972, 996, 1028, 1116, 1494, 1542, 1674, 2241, 2313, 2511, 2573, 2988, 3084, 3348, 4482, 4626, 5022, 5146, 6723, 6939, 7533, 7719, 7967, 8964, 9252, 10044, 10292, 13446, 13878, 15066, 15438, 15934, 20169, 20817, 21331, 23157, 23901, 26892, 27756, 30132, 30876, 31868, 40338, 41634, 42662, 46314, 47802, 62451, 63993, 69471, 71703, 80676, 83268, 85324, 92628, 95604, 124902, 127986, 138942, 143406, 191979, 208413, 215109, 249804, 255972, 277884, 286812, 383958, 416826, 430218, 575937, 625239, 645327, 661261, 767916, 833652, 860436, 1151874, 1250478, 1290654, 1322522, 1727811, 1935981, 1983783, 2303748, 2500956, 2581308, 2645044, 3455622, 3871962, 3967566, 5183433, 5951349, 6911244, 7743924, 7935132, 10366866, 11902698, 17854047, 20733732, 23805396, 35708094, 53562141, 71416188, 107124282, 160686423, 214248564, 321372846, 642745692]

約数ペア:

[(1, 642745692), (2, 321372846), (3, 214248564), (4, 160686423), (6, 107124282), (9, 71416188), (12, 53562141), (18, 35708094), (27, 23805396), (31, 20733732), (36, 17854047), (54, 11902698), (62, 10366866), (81, 7935132), (83, 7743924), (93, 6911244), (108, 5951349), (124, 5183433), (162, 3967566), (166, 3871962), (186, 3455622), (243, 2645044), (249, 2581308), (257, 2500956), (279, 2303748), (324, 1983783), (332, 1935981), (372, 1727811), (486, 1322522), (498, 1290654), (514, 1250478), (558, 1151874), (747, 860436), (771, 833652), (837, 767916), (972, 661261), (996, 645327), (1028, 625239), (1116, 575937), (1494, 430218), (1542, 416826), (1674, 383958), (2241, 286812), (2313, 277884), (2511, 255972), (2573, 249804), (2988, 215109), (3084, 208413), (3348, 191979), (4482, 143406), (4626, 138942), (5022, 127986), (5146, 124902), (6723, 95604), (6939, 92628), (7533, 85324), (7719, 83268), (7967, 80676), (8964, 71703), (9252, 69471), (10044, 63993), (10292, 62451), (13446, 47802), (13878, 46314), (15066, 42662), (15438, 41634), (15934, 40338), (20169, 31868), (20817, 30876), (21331, 30132), (23157, 27756), (23901, 26892)]