78142720

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1551

約数の個数: 72

約数和(自身を含む): 191870280

約数和(自身を除く): 113727560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1489, 1640, 2624, 2978, 3280, 5248, 5956, 6560, 7445, 10496, 11912, 13120, 14890, 23824, 26240, 29780, 47648, 52480, 59560, 61049, 95296, 119120, 122098, 190592, 238240, 244196, 305245, 381184, 476480, 488392, 610490, 952960, 976784, 1220980, 1905920, 1953568, 2441960, 3907136, 4883920, 7814272, 9767840, 15628544, 19535680, 39071360, 78142720]

約数ペア:

[(1, 78142720), (2, 39071360), (4, 19535680), (5, 15628544), (8, 9767840), (10, 7814272), (16, 4883920), (20, 3907136), (32, 2441960), (40, 1953568), (41, 1905920), (64, 1220980), (80, 976784), (82, 952960), (128, 610490), (160, 488392), (164, 476480), (205, 381184), (256, 305245), (320, 244196), (328, 238240), (410, 190592), (640, 122098), (656, 119120), (820, 95296), (1280, 61049), (1312, 59560), (1489, 52480), (1640, 47648), (2624, 29780), (2978, 26240), (3280, 23824), (5248, 14890), (5956, 13120), (6560, 11912), (7445, 10496)]