66521560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6421}}^1$

素因数の和:6476

約数の個数: 64

約数和(自身を含む): 175705920

約数和(自身を除く): 109184360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 6421, 10360, 12842, 25684, 32105, 44947, 51368, 64210, 89894, 128420, 179788, 224735, 237577, 256840, 359576, 449470, 475154, 898940, 950308, 1187885, 1663039, 1797880, 1900616, 2375770, 3326078, 4751540, 6652156, 8315195, 9503080, 13304312, 16630390, 33260780, 66521560]

約数ペア:

[(1, 66521560), (2, 33260780), (4, 16630390), (5, 13304312), (7, 9503080), (8, 8315195), (10, 6652156), (14, 4751540), (20, 3326078), (28, 2375770), (35, 1900616), (37, 1797880), (40, 1663039), (56, 1187885), (70, 950308), (74, 898940), (140, 475154), (148, 449470), (185, 359576), (259, 256840), (280, 237577), (296, 224735), (370, 179788), (518, 128420), (740, 89894), (1036, 64210), (1295, 51368), (1480, 44947), (2072, 32105), (2590, 25684), (5180, 12842), (6421, 10360)]