15981810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1019

約数の個数: 64

約数和(自身を含む): 42311808

約数和(自身を除く): 26329998

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 953, 1118, 1290, 1677, 1906, 2795, 2859, 3354, 4765, 5590, 5718, 8385, 9530, 12389, 14295, 16770, 24778, 28590, 37167, 40979, 61945, 74334, 81958, 122937, 123890, 185835, 204895, 245874, 371670, 409790, 532727, 614685, 1065454, 1229370, 1598181, 2663635, 3196362, 5327270, 7990905, 15981810]

約数ペア:

[(1, 15981810), (2, 7990905), (3, 5327270), (5, 3196362), (6, 2663635), (10, 1598181), (13, 1229370), (15, 1065454), (26, 614685), (30, 532727), (39, 409790), (43, 371670), (65, 245874), (78, 204895), (86, 185835), (129, 123890), (130, 122937), (195, 81958), (215, 74334), (258, 61945), (390, 40979), (430, 37167), (559, 28590), (645, 24778), (953, 16770), (1118, 14295), (1290, 12389), (1677, 9530), (1906, 8385), (2795, 5718), (2859, 5590), (3354, 4765)]