18228990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1153

約数の個数: 64

約数和(自身を含む): 48254976

約数和(自身を除く): 30025986

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, 1087, 1118, 1290, 1677, 2174, 2795, 3261, 3354, 5435, 5590, 6522, 8385, 10870, 14131, 16305, 16770, 28262, 32610, 42393, 46741, 70655, 84786, 93482, 140223, 141310, 211965, 233705, 280446, 423930, 467410, 607633, 701115, 1215266, 1402230, 1822899, 3038165, 3645798, 6076330, 9114495, 18228990]

約数ペア:

[(1, 18228990), (2, 9114495), (3, 6076330), (5, 3645798), (6, 3038165), (10, 1822899), (13, 1402230), (15, 1215266), (26, 701115), (30, 607633), (39, 467410), (43, 423930), (65, 280446), (78, 233705), (86, 211965), (129, 141310), (130, 140223), (195, 93482), (215, 84786), (258, 70655), (390, 46741), (430, 42393), (559, 32610), (645, 28262), (1087, 16770), (1118, 16305), (1290, 14131), (1677, 10870), (2174, 8385), (2795, 6522), (3261, 5590), (3354, 5435)]