2080985860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 4584045312

約数和(自身を除く): 2503059452

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 173, 197, 215, 284, 346, 355, 394, 430, 692, 710, 788, 860, 865, 985, 1420, 1730, 1970, 3053, 3460, 3940, 6106, 7439, 8471, 12212, 12283, 13987, 14878, 15265, 16942, 24566, 27974, 29756, 30530, 33884, 34081, 37195, 42355, 49132, 55948, 61060, 61415, 68162, 69935, 74390, 84710, 122830, 136324, 139870, 148780, 169420, 170405, 245660, 279740, 340810, 528169, 601441, 681620, 1056338, 1202882, 1465483, 2112676, 2405764, 2419751, 2640845, 2930966, 3007205, 4839502, 5281690, 5861932, 6014410, 7327415, 9679004, 10563380, 12028820, 12098755, 14654830, 24197510, 29309660, 48395020, 104049293, 208098586, 416197172, 520246465, 1040492930, 2080985860]

約数ペア:

[(1, 2080985860), (2, 1040492930), (4, 520246465), (5, 416197172), (10, 208098586), (20, 104049293), (43, 48395020), (71, 29309660), (86, 24197510), (142, 14654830), (172, 12098755), (173, 12028820), (197, 10563380), (215, 9679004), (284, 7327415), (346, 6014410), (355, 5861932), (394, 5281690), (430, 4839502), (692, 3007205), (710, 2930966), (788, 2640845), (860, 2419751), (865, 2405764), (985, 2112676), (1420, 1465483), (1730, 1202882), (1970, 1056338), (3053, 681620), (3460, 601441), (3940, 528169), (6106, 340810), (7439, 279740), (8471, 245660), (12212, 170405), (12283, 169420), (13987, 148780), (14878, 139870), (15265, 136324), (16942, 122830), (24566, 84710), (27974, 74390), (29756, 69935), (30530, 68162), (33884, 61415), (34081, 61060), (37195, 55948), (42355, 49132)]