15540920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 21230920

約数列:

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

約数ペア:

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