20194517420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{304961}}^1$

素因数の和:305031

約数の個数: 96

約数和(自身を含む): 54102698496

約数和(自身を除く): 33908181076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 140, 154, 172, 215, 220, 301, 308, 385, 430, 473, 602, 770, 860, 946, 1204, 1505, 1540, 1892, 2365, 3010, 3311, 4730, 6020, 6622, 9460, 13244, 16555, 33110, 66220, 304961, 609922, 1219844, 1524805, 2134727, 3049610, 3354571, 4269454, 6099220, 6709142, 8538908, 10673635, 13113323, 13418284, 16772855, 21347270, 23481997, 26226646, 33545710, 42694540, 46963994, 52453292, 65566615, 67091420, 91793261, 93927988, 117409985, 131133230, 144246553, 183586522, 234819970, 262266460, 288493106, 367173044, 458966305, 469639940, 576986212, 721232765, 917932610, 1009725871, 1442465530, 1835865220, 2019451742, 2884931060, 4038903484, 5048629355, 10097258710, 20194517420]

約数ペア:

[(1, 20194517420), (2, 10097258710), (4, 5048629355), (5, 4038903484), (7, 2884931060), (10, 2019451742), (11, 1835865220), (14, 1442465530), (20, 1009725871), (22, 917932610), (28, 721232765), (35, 576986212), (43, 469639940), (44, 458966305), (55, 367173044), (70, 288493106), (77, 262266460), (86, 234819970), (110, 183586522), (140, 144246553), (154, 131133230), (172, 117409985), (215, 93927988), (220, 91793261), (301, 67091420), (308, 65566615), (385, 52453292), (430, 46963994), (473, 42694540), (602, 33545710), (770, 26226646), (860, 23481997), (946, 21347270), (1204, 16772855), (1505, 13418284), (1540, 13113323), (1892, 10673635), (2365, 8538908), (3010, 6709142), (3311, 6099220), (4730, 4269454), (6020, 3354571), (6622, 3049610), (9460, 2134727), (13244, 1524805), (16555, 1219844), (33110, 609922), (66220, 304961)]