20215852060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{881249}}^1$

素因数の和:881326

約数の個数: 48

約数和(自身を含む): 45007200000

約数和(自身を除く): 24791347940

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 2294, 4588, 5735, 11470, 22940, 881249, 1762498, 3524996, 4406245, 8812490, 17624980, 27318719, 32606213, 54637438, 65212426, 109274876, 130424852, 136593595, 163031065, 273187190, 326062130, 546374380, 652124260, 1010792603, 2021585206, 4043170412, 5053963015, 10107926030, 20215852060]

約数ペア:

[(1, 20215852060), (2, 10107926030), (4, 5053963015), (5, 4043170412), (10, 2021585206), (20, 1010792603), (31, 652124260), (37, 546374380), (62, 326062130), (74, 273187190), (124, 163031065), (148, 136593595), (155, 130424852), (185, 109274876), (310, 65212426), (370, 54637438), (620, 32606213), (740, 27318719), (1147, 17624980), (2294, 8812490), (4588, 4406245), (5735, 3524996), (11470, 1762498), (22940, 881249)]