257788250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 529785360

約数和(自身を除く): 271997110

約数列:

[1, 2, 5, 10, 25, 29, 31, 37, 50, 58, 62, 74, 125, 145, 155, 185, 250, 290, 310, 370, 725, 775, 899, 925, 961, 1073, 1147, 1450, 1550, 1798, 1850, 1922, 2146, 2294, 3625, 3875, 4495, 4625, 4805, 5365, 5735, 7250, 7750, 8990, 9250, 9610, 10730, 11470, 22475, 24025, 26825, 27869, 28675, 33263, 35557, 44950, 48050, 53650, 55738, 57350, 66526, 71114, 112375, 120125, 134125, 139345, 143375, 166315, 177785, 224750, 240250, 268250, 278690, 286750, 332630, 355570, 696725, 831575, 888925, 1031153, 1393450, 1663150, 1777850, 2062306, 3483625, 4157875, 4444625, 5155765, 6967250, 8315750, 8889250, 10311530, 25778825, 51557650, 128894125, 257788250]

約数ペア:

[(1, 257788250), (2, 128894125), (5, 51557650), (10, 25778825), (25, 10311530), (29, 8889250), (31, 8315750), (37, 6967250), (50, 5155765), (58, 4444625), (62, 4157875), (74, 3483625), (125, 2062306), (145, 1777850), (155, 1663150), (185, 1393450), (250, 1031153), (290, 888925), (310, 831575), (370, 696725), (725, 355570), (775, 332630), (899, 286750), (925, 278690), (961, 268250), (1073, 240250), (1147, 224750), (1450, 177785), (1550, 166315), (1798, 143375), (1850, 139345), (1922, 134125), (2146, 120125), (2294, 112375), (3625, 71114), (3875, 66526), (4495, 57350), (4625, 55738), (4805, 53650), (5365, 48050), (5735, 44950), (7250, 35557), (7750, 33263), (8990, 28675), (9250, 27869), (9610, 26825), (10730, 24025), (11470, 22475)]