31005975

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 71245440

約数和(自身を除く): 40239465

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 25, 33, 35, 39, 49, 55, 59, 65, 75, 77, 91, 105, 143, 147, 165, 175, 177, 195, 231, 245, 273, 275, 295, 325, 385, 413, 429, 455, 525, 539, 637, 649, 715, 735, 767, 825, 885, 975, 1001, 1155, 1225, 1239, 1365, 1475, 1617, 1911, 1925, 1947, 2065, 2145, 2275, 2301, 2695, 2891, 3003, 3185, 3245, 3575, 3675, 3835, 4425, 4543, 5005, 5369, 5775, 6195, 6825, 7007, 8085, 8437, 8673, 9555, 9735, 10325, 10725, 11505, 13475, 13629, 14455, 15015, 15925, 16107, 16225, 19175, 21021, 22715, 25025, 25311, 26845, 30975, 31801, 35035, 37583, 40425, 42185, 43365, 47775, 48675, 57525, 59059, 68145, 72275, 75075, 80535, 95403, 105105, 112749, 113575, 126555, 134225, 159005, 175175, 177177, 187915, 210925, 216825, 295295, 340725, 402675, 413413, 477015, 525525, 563745, 632775, 795025, 885885, 939575, 1240239, 1476475, 2067065, 2385075, 2818725, 4429425, 6201195, 10335325, 31005975]

約数ペア:

[(1, 31005975), (3, 10335325), (5, 6201195), (7, 4429425), (11, 2818725), (13, 2385075), (15, 2067065), (21, 1476475), (25, 1240239), (33, 939575), (35, 885885), (39, 795025), (49, 632775), (55, 563745), (59, 525525), (65, 477015), (75, 413413), (77, 402675), (91, 340725), (105, 295295), (143, 216825), (147, 210925), (165, 187915), (175, 177177), (177, 175175), (195, 159005), (231, 134225), (245, 126555), (273, 113575), (275, 112749), (295, 105105), (325, 95403), (385, 80535), (413, 75075), (429, 72275), (455, 68145), (525, 59059), (539, 57525), (637, 48675), (649, 47775), (715, 43365), (735, 42185), (767, 40425), (825, 37583), (885, 35035), (975, 31801), (1001, 30975), (1155, 26845), (1225, 25311), (1239, 25025), (1365, 22715), (1475, 21021), (1617, 19175), (1911, 16225), (1925, 16107), (1947, 15925), (2065, 15015), (2145, 14455), (2275, 13629), (2301, 13475), (2695, 11505), (2891, 10725), (3003, 10325), (3185, 9735), (3245, 9555), (3575, 8673), (3675, 8437), (3835, 8085), (4425, 7007), (4543, 6825), (5005, 6195), (5369, 5775)]