20188520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2699}}^1$

素因数の和:2738

約数の個数: 64

約数和(自身を含む): 52488000

約数和(自身を除く): 32299480

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2699, 3740, 5398, 7480, 10796, 13495, 21592, 26990, 29689, 45883, 53980, 59378, 91766, 107960, 118756, 148445, 183532, 229415, 237512, 296890, 367064, 458830, 504713, 593780, 917660, 1009426, 1187560, 1835320, 2018852, 2523565, 4037704, 5047130, 10094260, 20188520]

約数ペア:

[(1, 20188520), (2, 10094260), (4, 5047130), (5, 4037704), (8, 2523565), (10, 2018852), (11, 1835320), (17, 1187560), (20, 1009426), (22, 917660), (34, 593780), (40, 504713), (44, 458830), (55, 367064), (68, 296890), (85, 237512), (88, 229415), (110, 183532), (136, 148445), (170, 118756), (187, 107960), (220, 91766), (340, 59378), (374, 53980), (440, 45883), (680, 29689), (748, 26990), (935, 21592), (1496, 13495), (1870, 10796), (2699, 7480), (3740, 5398)]