154466680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{971}}^1$

素因数の和:1120

約数の個数: 64

約数和(自身を含む): 360067680

約数和(自身を除く): 205601000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 97, 164, 194, 205, 328, 388, 410, 485, 776, 820, 970, 971, 1640, 1940, 1942, 3880, 3884, 3977, 4855, 7768, 7954, 9710, 15908, 19420, 19885, 31816, 38840, 39770, 39811, 79540, 79622, 94187, 159080, 159244, 188374, 199055, 318488, 376748, 398110, 470935, 753496, 796220, 941870, 1592440, 1883740, 3767480, 3861667, 7723334, 15446668, 19308335, 30893336, 38616670, 77233340, 154466680]

約数ペア:

[(1, 154466680), (2, 77233340), (4, 38616670), (5, 30893336), (8, 19308335), (10, 15446668), (20, 7723334), (40, 3861667), (41, 3767480), (82, 1883740), (97, 1592440), (164, 941870), (194, 796220), (205, 753496), (328, 470935), (388, 398110), (410, 376748), (485, 318488), (776, 199055), (820, 188374), (970, 159244), (971, 159080), (1640, 94187), (1940, 79622), (1942, 79540), (3880, 39811), (3884, 39770), (3977, 38840), (4855, 31816), (7768, 19885), (7954, 19420), (9710, 15908)]