20631310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 44416512

約数和(自身を除く): 23785202

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 67, 70, 83, 106, 134, 166, 265, 335, 371, 415, 469, 530, 581, 670, 742, 830, 938, 1162, 1855, 2345, 2905, 3551, 3710, 4399, 4690, 5561, 5810, 7102, 8798, 11122, 17755, 21995, 24857, 27805, 30793, 35510, 38927, 43990, 49714, 55610, 61586, 77854, 124285, 153965, 194635, 248570, 294733, 307930, 389270, 589466, 1473665, 2063131, 2947330, 4126262, 10315655, 20631310]

約数ペア:

[(1, 20631310), (2, 10315655), (5, 4126262), (7, 2947330), (10, 2063131), (14, 1473665), (35, 589466), (53, 389270), (67, 307930), (70, 294733), (83, 248570), (106, 194635), (134, 153965), (166, 124285), (265, 77854), (335, 61586), (371, 55610), (415, 49714), (469, 43990), (530, 38927), (581, 35510), (670, 30793), (742, 27805), (830, 24857), (938, 21995), (1162, 17755), (1855, 11122), (2345, 8798), (2905, 7102), (3551, 5810), (3710, 5561), (4399, 4690)]