1331566900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{359}}^1\times {\mathrm{1279}}^1$

素因数の和:1681

約数の個数: 72

約数和(自身を含む): 2999808000

約数和(自身を除く): 1668241100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 359, 580, 718, 725, 1279, 1436, 1450, 1795, 2558, 2900, 3590, 5116, 6395, 7180, 8975, 10411, 12790, 17950, 20822, 25580, 31975, 35900, 37091, 41644, 52055, 63950, 74182, 104110, 127900, 148364, 185455, 208220, 260275, 370910, 459161, 520550, 741820, 918322, 927275, 1041100, 1836644, 1854550, 2295805, 3709100, 4591610, 9183220, 11479025, 13315669, 22958050, 26631338, 45916100, 53262676, 66578345, 133156690, 266313380, 332891725, 665783450, 1331566900]

約数ペア:

[(1, 1331566900), (2, 665783450), (4, 332891725), (5, 266313380), (10, 133156690), (20, 66578345), (25, 53262676), (29, 45916100), (50, 26631338), (58, 22958050), (100, 13315669), (116, 11479025), (145, 9183220), (290, 4591610), (359, 3709100), (580, 2295805), (718, 1854550), (725, 1836644), (1279, 1041100), (1436, 927275), (1450, 918322), (1795, 741820), (2558, 520550), (2900, 459161), (3590, 370910), (5116, 260275), (6395, 208220), (7180, 185455), (8975, 148364), (10411, 127900), (12790, 104110), (17950, 74182), (20822, 63950), (25580, 52055), (31975, 41644), (35900, 37091)]