31081840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 75995136

約数和(自身を除く): 44913296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 83, 124, 151, 155, 166, 248, 302, 310, 332, 415, 496, 604, 620, 664, 755, 830, 1208, 1240, 1328, 1510, 1660, 2416, 2480, 2573, 3020, 3320, 4681, 5146, 6040, 6640, 9362, 10292, 12080, 12533, 12865, 18724, 20584, 23405, 25066, 25730, 37448, 41168, 46810, 50132, 51460, 62665, 74896, 93620, 100264, 102920, 125330, 187240, 200528, 205840, 250660, 374480, 388523, 501320, 777046, 1002640, 1554092, 1942615, 3108184, 3885230, 6216368, 7770460, 15540920, 31081840]

約数ペア:

[(1, 31081840), (2, 15540920), (4, 7770460), (5, 6216368), (8, 3885230), (10, 3108184), (16, 1942615), (20, 1554092), (31, 1002640), (40, 777046), (62, 501320), (80, 388523), (83, 374480), (124, 250660), (151, 205840), (155, 200528), (166, 187240), (248, 125330), (302, 102920), (310, 100264), (332, 93620), (415, 74896), (496, 62665), (604, 51460), (620, 50132), (664, 46810), (755, 41168), (830, 37448), (1208, 25730), (1240, 25066), (1328, 23405), (1510, 20584), (1660, 18724), (2416, 12865), (2480, 12533), (2573, 12080), (3020, 10292), (3320, 9362), (4681, 6640), (5146, 6040)]