891339988

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 2128400064

約数和(自身を除く): 1237060076

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 83, 98, 119, 154, 166, 187, 196, 238, 293, 308, 332, 374, 476, 539, 581, 586, 748, 833, 913, 1078, 1162, 1172, 1309, 1411, 1666, 1826, 2051, 2156, 2324, 2618, 2822, 3223, 3332, 3652, 4067, 4102, 4981, 5236, 5644, 6391, 6446, 8134, 8204, 9163, 9877, 9962, 12782, 12892, 14357, 15521, 16268, 18326, 19754, 19924, 22561, 24319, 25564, 28714, 31042, 34867, 36652, 39508, 44737, 45122, 48638, 54791, 57428, 62084, 69139, 69734, 89474, 90244, 97276, 108647, 109582, 138278, 139468, 157927, 170233, 178948, 217294, 219164, 244069, 267509, 276556, 315854, 340466, 383537, 413423, 434588, 488138, 535018, 631708, 680932, 760529, 767074, 826846, 976276, 1070036, 1191631, 1521058, 1534148, 1653692, 1872563, 2383262, 2684759, 2893961, 3042116, 3745126, 4547653, 4766524, 5369518, 5787922, 7490252, 9095306, 10739036, 11575844, 13107941, 18190612, 20257727, 26215882, 31833571, 40515454, 52431764, 63667142, 81030908, 127334284, 222834997, 445669994, 891339988]

約数ペア:

[(1, 891339988), (2, 445669994), (4, 222834997), (7, 127334284), (11, 81030908), (14, 63667142), (17, 52431764), (22, 40515454), (28, 31833571), (34, 26215882), (44, 20257727), (49, 18190612), (68, 13107941), (77, 11575844), (83, 10739036), (98, 9095306), (119, 7490252), (154, 5787922), (166, 5369518), (187, 4766524), (196, 4547653), (238, 3745126), (293, 3042116), (308, 2893961), (332, 2684759), (374, 2383262), (476, 1872563), (539, 1653692), (581, 1534148), (586, 1521058), (748, 1191631), (833, 1070036), (913, 976276), (1078, 826846), (1162, 767074), (1172, 760529), (1309, 680932), (1411, 631708), (1666, 535018), (1826, 488138), (2051, 434588), (2156, 413423), (2324, 383537), (2618, 340466), (2822, 315854), (3223, 276556), (3332, 267509), (3652, 244069), (4067, 219164), (4102, 217294), (4981, 178948), (5236, 170233), (5644, 157927), (6391, 139468), (6446, 138278), (8134, 109582), (8204, 108647), (9163, 97276), (9877, 90244), (9962, 89474), (12782, 69734), (12892, 69139), (14357, 62084), (15521, 57428), (16268, 54791), (18326, 48638), (19754, 45122), (19924, 44737), (22561, 39508), (24319, 36652), (25564, 34867), (28714, 31042)]