31132215

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 58798080

約数和(自身を除く): 27665865

約数列:

[1, 3, 5, 9, 15, 27, 31, 43, 45, 93, 129, 135, 155, 173, 215, 279, 387, 465, 519, 645, 837, 865, 1161, 1333, 1395, 1557, 1935, 2595, 3999, 4185, 4671, 5363, 5805, 6665, 7439, 7785, 11997, 16089, 19995, 22317, 23355, 26815, 35991, 37195, 48267, 59985, 66951, 80445, 111585, 144801, 179955, 200853, 230609, 241335, 334755, 691827, 724005, 1004265, 1153045, 2075481, 3459135, 6226443, 10377405, 31132215]

約数ペア:

[(1, 31132215), (3, 10377405), (5, 6226443), (9, 3459135), (15, 2075481), (27, 1153045), (31, 1004265), (43, 724005), (45, 691827), (93, 334755), (129, 241335), (135, 230609), (155, 200853), (173, 179955), (215, 144801), (279, 111585), (387, 80445), (465, 66951), (519, 59985), (645, 48267), (837, 37195), (865, 35991), (1161, 26815), (1333, 23355), (1395, 22317), (1557, 19995), (1935, 16089), (2595, 11997), (3999, 7785), (4185, 7439), (4671, 6665), (5363, 5805)]