278850

素因数分解:

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

素因数の和:52

約数の個数: 72

約数和(自身を含む): 816912

約数和(自身を除く): 538062

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 25, 26, 30, 33, 39, 50, 55, 65, 66, 75, 78, 110, 130, 143, 150, 165, 169, 195, 275, 286, 325, 330, 338, 390, 429, 507, 550, 650, 715, 825, 845, 858, 975, 1014, 1430, 1650, 1690, 1859, 1950, 2145, 2535, 3575, 3718, 4225, 4290, 5070, 5577, 7150, 8450, 9295, 10725, 11154, 12675, 18590, 21450, 25350, 27885, 46475, 55770, 92950, 139425, 278850]

約数ペア:

[(1, 278850), (2, 139425), (3, 92950), (5, 55770), (6, 46475), (10, 27885), (11, 25350), (13, 21450), (15, 18590), (22, 12675), (25, 11154), (26, 10725), (30, 9295), (33, 8450), (39, 7150), (50, 5577), (55, 5070), (65, 4290), (66, 4225), (75, 3718), (78, 3575), (110, 2535), (130, 2145), (143, 1950), (150, 1859), (165, 1690), (169, 1650), (195, 1430), (275, 1014), (286, 975), (325, 858), (330, 845), (338, 825), (390, 715), (429, 650), (507, 550)]