51681870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1987}}^1$

素因数の和:2034

約数の個数: 72

約数和(自身を含む): 142813944

約数和(自身を除く): 91132074

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 289, 306, 510, 578, 765, 867, 1445, 1530, 1734, 1987, 2601, 2890, 3974, 4335, 5202, 5961, 8670, 9935, 11922, 13005, 17883, 19870, 26010, 29805, 33779, 35766, 59610, 67558, 89415, 101337, 168895, 178830, 202674, 304011, 337790, 506685, 574243, 608022, 1013370, 1148486, 1520055, 1722729, 2871215, 3040110, 3445458, 5168187, 5742430, 8613645, 10336374, 17227290, 25840935, 51681870]

約数ペア:

[(1, 51681870), (2, 25840935), (3, 17227290), (5, 10336374), (6, 8613645), (9, 5742430), (10, 5168187), (15, 3445458), (17, 3040110), (18, 2871215), (30, 1722729), (34, 1520055), (45, 1148486), (51, 1013370), (85, 608022), (90, 574243), (102, 506685), (153, 337790), (170, 304011), (255, 202674), (289, 178830), (306, 168895), (510, 101337), (578, 89415), (765, 67558), (867, 59610), (1445, 35766), (1530, 33779), (1734, 29805), (1987, 26010), (2601, 19870), (2890, 17883), (3974, 13005), (4335, 11922), (5202, 9935), (5961, 8670)]