78540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1$

素因数の和:47

約数の個数: 96

約数和(自身を含む): 290304

約数和(自身を除く): 211764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 17, 20, 21, 22, 28, 30, 33, 34, 35, 42, 44, 51, 55, 60, 66, 68, 70, 77, 84, 85, 102, 105, 110, 119, 132, 140, 154, 165, 170, 187, 204, 210, 220, 231, 238, 255, 308, 330, 340, 357, 374, 385, 420, 462, 476, 510, 561, 595, 660, 714, 748, 770, 924, 935, 1020, 1122, 1155, 1190, 1309, 1428, 1540, 1785, 1870, 2244, 2310, 2380, 2618, 2805, 3570, 3740, 3927, 4620, 5236, 5610, 6545, 7140, 7854, 11220, 13090, 15708, 19635, 26180, 39270, 78540]

約数ペア:

[(1, 78540), (2, 39270), (3, 26180), (4, 19635), (5, 15708), (6, 13090), (7, 11220), (10, 7854), (11, 7140), (12, 6545), (14, 5610), (15, 5236), (17, 4620), (20, 3927), (21, 3740), (22, 3570), (28, 2805), (30, 2618), (33, 2380), (34, 2310), (35, 2244), (42, 1870), (44, 1785), (51, 1540), (55, 1428), (60, 1309), (66, 1190), (68, 1155), (70, 1122), (77, 1020), (84, 935), (85, 924), (102, 770), (105, 748), (110, 714), (119, 660), (132, 595), (140, 561), (154, 510), (165, 476), (170, 462), (187, 420), (204, 385), (210, 374), (220, 357), (231, 340), (238, 330), (255, 308)]