256864140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3541}}^1$

素因数の和:3600

約数の個数: 144

約数和(自身を含む): 866401536

約数和(自身を除く): 609537396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 279, 310, 372, 390, 403, 465, 468, 558, 585, 620, 780, 806, 930, 1116, 1170, 1209, 1395, 1612, 1860, 2015, 2340, 2418, 2790, 3541, 3627, 4030, 4836, 5580, 6045, 7082, 7254, 8060, 10623, 12090, 14164, 14508, 17705, 18135, 21246, 24180, 31869, 35410, 36270, 42492, 46033, 53115, 63738, 70820, 72540, 92066, 106230, 109771, 127476, 138099, 159345, 184132, 212460, 219542, 230165, 276198, 318690, 329313, 414297, 439084, 460330, 548855, 552396, 637380, 658626, 690495, 828594, 920660, 987939, 1097710, 1317252, 1380990, 1427023, 1646565, 1657188, 1975878, 2071485, 2195420, 2761980, 2854046, 3293130, 3951756, 4142970, 4281069, 4939695, 5708092, 6586260, 7135115, 8285940, 8562138, 9879390, 12843207, 14270230, 17124276, 19758780, 21405345, 25686414, 28540460, 42810690, 51372828, 64216035, 85621380, 128432070, 256864140]

約数ペア:

[(1, 256864140), (2, 128432070), (3, 85621380), (4, 64216035), (5, 51372828), (6, 42810690), (9, 28540460), (10, 25686414), (12, 21405345), (13, 19758780), (15, 17124276), (18, 14270230), (20, 12843207), (26, 9879390), (30, 8562138), (31, 8285940), (36, 7135115), (39, 6586260), (45, 5708092), (52, 4939695), (60, 4281069), (62, 4142970), (65, 3951756), (78, 3293130), (90, 2854046), (93, 2761980), (117, 2195420), (124, 2071485), (130, 1975878), (155, 1657188), (156, 1646565), (180, 1427023), (186, 1380990), (195, 1317252), (234, 1097710), (260, 987939), (279, 920660), (310, 828594), (372, 690495), (390, 658626), (403, 637380), (465, 552396), (468, 548855), (558, 460330), (585, 439084), (620, 414297), (780, 329313), (806, 318690), (930, 276198), (1116, 230165), (1170, 219542), (1209, 212460), (1395, 184132), (1612, 159345), (1860, 138099), (2015, 127476), (2340, 109771), (2418, 106230), (2790, 92066), (3541, 72540), (3627, 70820), (4030, 63738), (4836, 53115), (5580, 46033), (6045, 42492), (7082, 36270), (7254, 35410), (8060, 31869), (10623, 24180), (12090, 21246), (14164, 18135), (14508, 17705)]