256949700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:4002

約数の個数: 144

約数和(自身を含む): 877277184

約数和(自身を除く): 620327484

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 50, 60, 62, 70, 75, 84, 93, 100, 105, 124, 140, 150, 155, 175, 186, 210, 217, 300, 310, 350, 372, 420, 434, 465, 525, 620, 651, 700, 775, 868, 930, 1050, 1085, 1302, 1550, 1860, 2100, 2170, 2325, 2604, 3100, 3255, 3947, 4340, 4650, 5425, 6510, 7894, 9300, 10850, 11841, 13020, 15788, 16275, 19735, 21700, 23682, 27629, 32550, 39470, 47364, 55258, 59205, 65100, 78940, 82887, 98675, 110516, 118410, 122357, 138145, 165774, 197350, 236820, 244714, 276290, 296025, 331548, 367071, 394700, 414435, 489428, 552580, 592050, 611785, 690725, 734142, 828870, 856499, 1184100, 1223570, 1381450, 1468284, 1657740, 1712998, 1835355, 2072175, 2447140, 2569497, 2762900, 3058925, 3425996, 3670710, 4144350, 4282495, 5138994, 6117850, 7341420, 8288700, 8564990, 9176775, 10277988, 12235700, 12847485, 17129980, 18353550, 21412475, 25694970, 36707100, 42824950, 51389940, 64237425, 85649900, 128474850, 256949700]

約数ペア:

[(1, 256949700), (2, 128474850), (3, 85649900), (4, 64237425), (5, 51389940), (6, 42824950), (7, 36707100), (10, 25694970), (12, 21412475), (14, 18353550), (15, 17129980), (20, 12847485), (21, 12235700), (25, 10277988), (28, 9176775), (30, 8564990), (31, 8288700), (35, 7341420), (42, 6117850), (50, 5138994), (60, 4282495), (62, 4144350), (70, 3670710), (75, 3425996), (84, 3058925), (93, 2762900), (100, 2569497), (105, 2447140), (124, 2072175), (140, 1835355), (150, 1712998), (155, 1657740), (175, 1468284), (186, 1381450), (210, 1223570), (217, 1184100), (300, 856499), (310, 828870), (350, 734142), (372, 690725), (420, 611785), (434, 592050), (465, 552580), (525, 489428), (620, 414435), (651, 394700), (700, 367071), (775, 331548), (868, 296025), (930, 276290), (1050, 244714), (1085, 236820), (1302, 197350), (1550, 165774), (1860, 138145), (2100, 122357), (2170, 118410), (2325, 110516), (2604, 98675), (3100, 82887), (3255, 78940), (3947, 65100), (4340, 59205), (4650, 55258), (5425, 47364), (6510, 39470), (7894, 32550), (9300, 27629), (10850, 23682), (11841, 21700), (13020, 19735), (15788, 16275)]