18166540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 46418400

約数和(自身を除く): 28251860

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 449, 476, 578, 595, 898, 1156, 1190, 1445, 1796, 2023, 2245, 2380, 2890, 3143, 4046, 4490, 5780, 6286, 7633, 8092, 8980, 10115, 12572, 15266, 15715, 20230, 30532, 31430, 38165, 40460, 53431, 62860, 76330, 106862, 129761, 152660, 213724, 259522, 267155, 519044, 534310, 648805, 908327, 1068620, 1297610, 1816654, 2595220, 3633308, 4541635, 9083270, 18166540]

約数ペア:

[(1, 18166540), (2, 9083270), (4, 4541635), (5, 3633308), (7, 2595220), (10, 1816654), (14, 1297610), (17, 1068620), (20, 908327), (28, 648805), (34, 534310), (35, 519044), (68, 267155), (70, 259522), (85, 213724), (119, 152660), (140, 129761), (170, 106862), (238, 76330), (289, 62860), (340, 53431), (449, 40460), (476, 38165), (578, 31430), (595, 30532), (898, 20230), (1156, 15715), (1190, 15266), (1445, 12572), (1796, 10115), (2023, 8980), (2245, 8092), (2380, 7633), (2890, 6286), (3143, 5780), (4046, 4490)]