311960540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{1091}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 719055792

約数和(自身を除く): 407095252

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 841, 986, 1091, 1682, 1972, 2182, 2465, 3364, 4205, 4364, 4930, 5455, 8410, 9860, 10910, 14297, 16820, 18547, 21820, 28594, 31639, 37094, 57188, 63278, 71485, 74188, 92735, 126556, 142970, 158195, 185470, 285940, 316390, 370940, 537863, 632780, 917531, 1075726, 1835062, 2151452, 2689315, 3670124, 4587655, 5378630, 9175310, 10757260, 15598027, 18350620, 31196054, 62392108, 77990135, 155980270, 311960540]

約数ペア:

[(1, 311960540), (2, 155980270), (4, 77990135), (5, 62392108), (10, 31196054), (17, 18350620), (20, 15598027), (29, 10757260), (34, 9175310), (58, 5378630), (68, 4587655), (85, 3670124), (116, 2689315), (145, 2151452), (170, 1835062), (290, 1075726), (340, 917531), (493, 632780), (580, 537863), (841, 370940), (986, 316390), (1091, 285940), (1682, 185470), (1972, 158195), (2182, 142970), (2465, 126556), (3364, 92735), (4205, 74188), (4364, 71485), (4930, 63278), (5455, 57188), (8410, 37094), (9860, 31639), (10910, 28594), (14297, 21820), (16820, 18547)]