76728420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{971}}^1$

素因数の和:1425

約数の個数: 72

約数和(自身を含む): 233513280

約数和(自身を除く): 156784860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 878, 971, 1317, 1756, 1942, 2195, 2634, 2913, 3884, 3951, 4390, 4855, 5268, 5826, 6585, 7902, 8739, 8780, 9710, 11652, 13170, 14565, 15804, 17478, 19420, 19755, 26340, 29130, 34956, 39510, 43695, 58260, 79020, 87390, 174780, 426269, 852538, 1278807, 1705076, 2131345, 2557614, 3836421, 4262690, 5115228, 6394035, 7672842, 8525380, 12788070, 15345684, 19182105, 25576140, 38364210, 76728420]

約数ペア:

[(1, 76728420), (2, 38364210), (3, 25576140), (4, 19182105), (5, 15345684), (6, 12788070), (9, 8525380), (10, 7672842), (12, 6394035), (15, 5115228), (18, 4262690), (20, 3836421), (30, 2557614), (36, 2131345), (45, 1705076), (60, 1278807), (90, 852538), (180, 426269), (439, 174780), (878, 87390), (971, 79020), (1317, 58260), (1756, 43695), (1942, 39510), (2195, 34956), (2634, 29130), (2913, 26340), (3884, 19755), (3951, 19420), (4390, 17478), (4855, 15804), (5268, 14565), (5826, 13170), (6585, 11652), (7902, 9710), (8739, 8780)]