180004720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2531}}^1$

素因数の和:2678

約数の個数: 80

約数和(自身を含む): 482254848

約数和(自身を除く): 302250128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1270, 1778, 2032, 2531, 2540, 3556, 4445, 5062, 5080, 7112, 8890, 10124, 10160, 12655, 14224, 17717, 17780, 20248, 25310, 35434, 35560, 40496, 50620, 70868, 71120, 88585, 101240, 141736, 177170, 202480, 283472, 321437, 354340, 642874, 708680, 1285748, 1417360, 1607185, 2250059, 2571496, 3214370, 4500118, 5142992, 6428740, 9000236, 11250295, 12857480, 18000472, 22500590, 25714960, 36000944, 45001180, 90002360, 180004720]

約数ペア:

[(1, 180004720), (2, 90002360), (4, 45001180), (5, 36000944), (7, 25714960), (8, 22500590), (10, 18000472), (14, 12857480), (16, 11250295), (20, 9000236), (28, 6428740), (35, 5142992), (40, 4500118), (56, 3214370), (70, 2571496), (80, 2250059), (112, 1607185), (127, 1417360), (140, 1285748), (254, 708680), (280, 642874), (508, 354340), (560, 321437), (635, 283472), (889, 202480), (1016, 177170), (1270, 141736), (1778, 101240), (2032, 88585), (2531, 71120), (2540, 70868), (3556, 50620), (4445, 40496), (5062, 35560), (5080, 35434), (7112, 25310), (8890, 20248), (10124, 17780), (10160, 17717), (12655, 14224)]