31890320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:229

約数の個数: 160

約数和(自身を含む): 95993856

約数和(自身を除く): 64103536

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 110, 112, 124, 140, 154, 155, 167, 176, 217, 220, 248, 280, 308, 310, 334, 341, 385, 434, 440, 496, 560, 616, 620, 668, 682, 770, 835, 868, 880, 1085, 1169, 1232, 1240, 1336, 1364, 1540, 1670, 1705, 1736, 1837, 2170, 2338, 2387, 2480, 2672, 2728, 3080, 3340, 3410, 3472, 3674, 4340, 4676, 4774, 5177, 5456, 5845, 6160, 6680, 6820, 7348, 8680, 9185, 9352, 9548, 10354, 11690, 11935, 12859, 13360, 13640, 14696, 17360, 18370, 18704, 19096, 20708, 23380, 23870, 25718, 25885, 27280, 29392, 36239, 36740, 38192, 41416, 46760, 47740, 51436, 51770, 56947, 64295, 72478, 73480, 82832, 93520, 95480, 102872, 103540, 113894, 128590, 144956, 146960, 181195, 190960, 205744, 207080, 227788, 257180, 284735, 289912, 362390, 398629, 414160, 455576, 514360, 569470, 579824, 724780, 797258, 911152, 1028720, 1138940, 1449560, 1594516, 1993145, 2277880, 2899120, 3189032, 3986290, 4555760, 6378064, 7972580, 15945160, 31890320]

約数ペア:

[(1, 31890320), (2, 15945160), (4, 7972580), (5, 6378064), (7, 4555760), (8, 3986290), (10, 3189032), (11, 2899120), (14, 2277880), (16, 1993145), (20, 1594516), (22, 1449560), (28, 1138940), (31, 1028720), (35, 911152), (40, 797258), (44, 724780), (55, 579824), (56, 569470), (62, 514360), (70, 455576), (77, 414160), (80, 398629), (88, 362390), (110, 289912), (112, 284735), (124, 257180), (140, 227788), (154, 207080), (155, 205744), (167, 190960), (176, 181195), (217, 146960), (220, 144956), (248, 128590), (280, 113894), (308, 103540), (310, 102872), (334, 95480), (341, 93520), (385, 82832), (434, 73480), (440, 72478), (496, 64295), (560, 56947), (616, 51770), (620, 51436), (668, 47740), (682, 46760), (770, 41416), (835, 38192), (868, 36740), (880, 36239), (1085, 29392), (1169, 27280), (1232, 25885), (1240, 25718), (1336, 23870), (1364, 23380), (1540, 20708), (1670, 19096), (1705, 18704), (1736, 18370), (1837, 17360), (2170, 14696), (2338, 13640), (2387, 13360), (2480, 12859), (2672, 11935), (2728, 11690), (3080, 10354), (3340, 9548), (3410, 9352), (3472, 9185), (3674, 8680), (4340, 7348), (4676, 6820), (4774, 6680), (5177, 6160), (5456, 5845)]