79474640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1021}}^1$

素因数の和:1180

約数の個数: 80

約数和(自身を含む): 212903040

約数和(自身を除く): 133428400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1021, 1112, 1390, 1946, 2042, 2224, 2780, 3892, 4084, 4865, 5105, 5560, 7147, 7784, 8168, 9730, 10210, 11120, 14294, 15568, 16336, 19460, 20420, 28588, 35735, 38920, 40840, 57176, 71470, 77840, 81680, 114352, 141919, 142940, 283838, 285880, 567676, 571760, 709595, 993433, 1135352, 1419190, 1986866, 2270704, 2838380, 3973732, 4967165, 5676760, 7947464, 9934330, 11353520, 15894928, 19868660, 39737320, 79474640]

約数ペア:

[(1, 79474640), (2, 39737320), (4, 19868660), (5, 15894928), (7, 11353520), (8, 9934330), (10, 7947464), (14, 5676760), (16, 4967165), (20, 3973732), (28, 2838380), (35, 2270704), (40, 1986866), (56, 1419190), (70, 1135352), (80, 993433), (112, 709595), (139, 571760), (140, 567676), (278, 285880), (280, 283838), (556, 142940), (560, 141919), (695, 114352), (973, 81680), (1021, 77840), (1112, 71470), (1390, 57176), (1946, 40840), (2042, 38920), (2224, 35735), (2780, 28588), (3892, 20420), (4084, 19460), (4865, 16336), (5105, 15568), (5560, 14294), (7147, 11120), (7784, 10210), (8168, 9730)]