2851807420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20807}}^1$

素因数の和:20923

約数の個数: 96

約数和(自身を含む): 7550807040

約数和(自身を除く): 4698999620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 89, 110, 140, 154, 178, 220, 308, 356, 385, 445, 623, 770, 890, 979, 1246, 1540, 1780, 1958, 2492, 3115, 3916, 4895, 6230, 6853, 9790, 12460, 13706, 19580, 20807, 27412, 34265, 41614, 68530, 83228, 104035, 137060, 145649, 208070, 228877, 291298, 416140, 457754, 582596, 728245, 915508, 1144385, 1456490, 1602139, 1851823, 2288770, 2912980, 3204278, 3703646, 4577540, 6408556, 7407292, 8010695, 9259115, 12962761, 16021390, 18518230, 20370053, 25925522, 32042780, 37036460, 40740106, 51851044, 64813805, 81480212, 101850265, 129627610, 142590371, 203700530, 259255220, 285180742, 407401060, 570361484, 712951855, 1425903710, 2851807420]

約数ペア:

[(1, 2851807420), (2, 1425903710), (4, 712951855), (5, 570361484), (7, 407401060), (10, 285180742), (11, 259255220), (14, 203700530), (20, 142590371), (22, 129627610), (28, 101850265), (35, 81480212), (44, 64813805), (55, 51851044), (70, 40740106), (77, 37036460), (89, 32042780), (110, 25925522), (140, 20370053), (154, 18518230), (178, 16021390), (220, 12962761), (308, 9259115), (356, 8010695), (385, 7407292), (445, 6408556), (623, 4577540), (770, 3703646), (890, 3204278), (979, 2912980), (1246, 2288770), (1540, 1851823), (1780, 1602139), (1958, 1456490), (2492, 1144385), (3115, 915508), (3916, 728245), (4895, 582596), (6230, 457754), (6853, 416140), (9790, 291298), (12460, 228877), (13706, 208070), (19580, 145649), (20807, 137060), (27412, 104035), (34265, 83228), (41614, 68530)]