39281420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 85673280

約数和(自身を除く): 46391860

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 185, 218, 370, 436, 487, 545, 740, 974, 1090, 1948, 2180, 2435, 4033, 4870, 8066, 9740, 16132, 18019, 20165, 36038, 40330, 53083, 72076, 80660, 90095, 106166, 180190, 212332, 265415, 360380, 530830, 1061660, 1964071, 3928142, 7856284, 9820355, 19640710, 39281420]

約数ペア:

[(1, 39281420), (2, 19640710), (4, 9820355), (5, 7856284), (10, 3928142), (20, 1964071), (37, 1061660), (74, 530830), (109, 360380), (148, 265415), (185, 212332), (218, 180190), (370, 106166), (436, 90095), (487, 80660), (545, 72076), (740, 53083), (974, 40330), (1090, 36038), (1948, 20165), (2180, 18019), (2435, 16132), (4033, 9740), (4870, 8066)]