2018040476860

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1987}}^1\times {\mathrm{78487}}^1$

素因数の和:81130

約数の個数: 48

約数和(自身を含む): 4246625263104

約数和(自身を除く): 2228584786244

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1987, 2588, 3235, 3974, 6470, 7948, 9935, 12940, 19870, 39740, 78487, 156974, 313948, 392435, 784870, 1285589, 1569740, 2571178, 5142356, 6427945, 12855890, 25711780, 50781089, 101562178, 155953669, 203124356, 253905445, 311907338, 507810890, 623814676, 779768345, 1015621780, 1559536690, 3119073380, 100902023843, 201804047686, 403608095372, 504510119215, 1009020238430, 2018040476860]

約数ペア:

[(1, 2018040476860), (2, 1009020238430), (4, 504510119215), (5, 403608095372), (10, 201804047686), (20, 100902023843), (647, 3119073380), (1294, 1559536690), (1987, 1015621780), (2588, 779768345), (3235, 623814676), (3974, 507810890), (6470, 311907338), (7948, 253905445), (9935, 203124356), (12940, 155953669), (19870, 101562178), (39740, 50781089), (78487, 25711780), (156974, 12855890), (313948, 6427945), (392435, 5142356), (784870, 2571178), (1285589, 1569740)]