28413684

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:689

約数の個数: 72

約数和(自身を含む): 78198120

約数和(自身を除く): 49784436

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 109, 117, 156, 218, 234, 327, 436, 468, 557, 654, 981, 1114, 1308, 1417, 1671, 1962, 2228, 2834, 3342, 3924, 4251, 5013, 5668, 6684, 7241, 8502, 10026, 12753, 14482, 17004, 20052, 21723, 25506, 28964, 43446, 51012, 60713, 65169, 86892, 121426, 130338, 182139, 242852, 260676, 364278, 546417, 728556, 789269, 1092834, 1578538, 2185668, 2367807, 3157076, 4735614, 7103421, 9471228, 14206842, 28413684]

約数ペア:

[(1, 28413684), (2, 14206842), (3, 9471228), (4, 7103421), (6, 4735614), (9, 3157076), (12, 2367807), (13, 2185668), (18, 1578538), (26, 1092834), (36, 789269), (39, 728556), (52, 546417), (78, 364278), (109, 260676), (117, 242852), (156, 182139), (218, 130338), (234, 121426), (327, 86892), (436, 65169), (468, 60713), (557, 51012), (654, 43446), (981, 28964), (1114, 25506), (1308, 21723), (1417, 20052), (1671, 17004), (1962, 14482), (2228, 12753), (2834, 10026), (3342, 8502), (3924, 7241), (4251, 6684), (5013, 5668)]