90208120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2503}}^1$

素因数の和:2584

約数の個数: 64

約数和(自身を含む): 219049920

約数和(自身を除く): 128841800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 530, 680, 901, 1060, 1802, 2120, 2503, 3604, 4505, 5006, 7208, 9010, 10012, 12515, 18020, 20024, 25030, 36040, 42551, 50060, 85102, 100120, 132659, 170204, 212755, 265318, 340408, 425510, 530636, 663295, 851020, 1061272, 1326590, 1702040, 2255203, 2653180, 4510406, 5306360, 9020812, 11276015, 18041624, 22552030, 45104060, 90208120]

約数ペア:

[(1, 90208120), (2, 45104060), (4, 22552030), (5, 18041624), (8, 11276015), (10, 9020812), (17, 5306360), (20, 4510406), (34, 2653180), (40, 2255203), (53, 1702040), (68, 1326590), (85, 1061272), (106, 851020), (136, 663295), (170, 530636), (212, 425510), (265, 340408), (340, 265318), (424, 212755), (530, 170204), (680, 132659), (901, 100120), (1060, 85102), (1802, 50060), (2120, 42551), (2503, 36040), (3604, 25030), (4505, 20024), (5006, 18020), (7208, 12515), (9010, 10012)]