219953140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2557}}^1$

素因数の和:2617

約数の個数: 96

約数和(自身を含む): 556948224

約数和(自身を除く): 336995084

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 23, 34, 44, 46, 55, 68, 85, 92, 110, 115, 170, 187, 220, 230, 253, 340, 374, 391, 460, 506, 748, 782, 935, 1012, 1265, 1564, 1870, 1955, 2530, 2557, 3740, 3910, 4301, 5060, 5114, 7820, 8602, 10228, 12785, 17204, 21505, 25570, 28127, 43010, 43469, 51140, 56254, 58811, 86020, 86938, 112508, 117622, 140635, 173876, 217345, 235244, 281270, 294055, 434690, 478159, 562540, 588110, 646921, 869380, 956318, 999787, 1176220, 1293842, 1912636, 1999574, 2390795, 2587684, 3234605, 3999148, 4781590, 4998935, 6469210, 9563180, 9997870, 10997657, 12938420, 19995740, 21995314, 43990628, 54988285, 109976570, 219953140]

約数ペア:

[(1, 219953140), (2, 109976570), (4, 54988285), (5, 43990628), (10, 21995314), (11, 19995740), (17, 12938420), (20, 10997657), (22, 9997870), (23, 9563180), (34, 6469210), (44, 4998935), (46, 4781590), (55, 3999148), (68, 3234605), (85, 2587684), (92, 2390795), (110, 1999574), (115, 1912636), (170, 1293842), (187, 1176220), (220, 999787), (230, 956318), (253, 869380), (340, 646921), (374, 588110), (391, 562540), (460, 478159), (506, 434690), (748, 294055), (782, 281270), (935, 235244), (1012, 217345), (1265, 173876), (1564, 140635), (1870, 117622), (1955, 112508), (2530, 86938), (2557, 86020), (3740, 58811), (3910, 56254), (4301, 51140), (5060, 43469), (5114, 43010), (7820, 28127), (8602, 25570), (10228, 21505), (12785, 17204)]