256341750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:495

約数の個数: 128

約数和(自身を含む): 738256896

約数和(自身を除く): 481915146

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 157, 175, 210, 250, 311, 314, 350, 375, 471, 525, 622, 750, 785, 875, 933, 942, 1050, 1099, 1555, 1570, 1750, 1866, 2177, 2198, 2355, 2625, 3110, 3297, 3925, 4354, 4665, 4710, 5250, 5495, 6531, 6594, 7775, 7850, 9330, 10885, 10990, 11775, 13062, 15550, 16485, 19625, 21770, 23325, 23550, 27475, 32655, 32970, 38875, 39250, 46650, 48827, 54425, 54950, 58875, 65310, 77750, 82425, 97654, 108850, 116625, 117750, 137375, 146481, 163275, 164850, 233250, 244135, 272125, 274750, 292962, 326550, 341789, 412125, 488270, 544250, 683578, 732405, 816375, 824250, 1025367, 1220675, 1464810, 1632750, 1708945, 2050734, 2441350, 3417890, 3662025, 5126835, 6103375, 7324050, 8544725, 10253670, 12206750, 17089450, 18310125, 25634175, 36620250, 42723625, 51268350, 85447250, 128170875, 256341750]

約数ペア:

[(1, 256341750), (2, 128170875), (3, 85447250), (5, 51268350), (6, 42723625), (7, 36620250), (10, 25634175), (14, 18310125), (15, 17089450), (21, 12206750), (25, 10253670), (30, 8544725), (35, 7324050), (42, 6103375), (50, 5126835), (70, 3662025), (75, 3417890), (105, 2441350), (125, 2050734), (150, 1708945), (157, 1632750), (175, 1464810), (210, 1220675), (250, 1025367), (311, 824250), (314, 816375), (350, 732405), (375, 683578), (471, 544250), (525, 488270), (622, 412125), (750, 341789), (785, 326550), (875, 292962), (933, 274750), (942, 272125), (1050, 244135), (1099, 233250), (1555, 164850), (1570, 163275), (1750, 146481), (1866, 137375), (2177, 117750), (2198, 116625), (2355, 108850), (2625, 97654), (3110, 82425), (3297, 77750), (3925, 65310), (4354, 58875), (4665, 54950), (4710, 54425), (5250, 48827), (5495, 46650), (6531, 39250), (6594, 38875), (7775, 32970), (7850, 32655), (9330, 27475), (10885, 23550), (10990, 23325), (11775, 21770), (13062, 19625), (15550, 16485)]