1255361720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{3469}}^1$

素因数の和:3672

約数の個数: 64

約数和(自身を含む): 2885652000

約数和(自身を除く): 1630290280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 109, 166, 218, 332, 415, 436, 545, 664, 830, 872, 1090, 1660, 2180, 3320, 3469, 4360, 6938, 9047, 13876, 17345, 18094, 27752, 34690, 36188, 45235, 69380, 72376, 90470, 138760, 180940, 287927, 361880, 378121, 575854, 756242, 1151708, 1439635, 1512484, 1890605, 2303416, 2879270, 3024968, 3781210, 5758540, 7562420, 11517080, 15124840, 31384043, 62768086, 125536172, 156920215, 251072344, 313840430, 627680860, 1255361720]

約数ペア:

[(1, 1255361720), (2, 627680860), (4, 313840430), (5, 251072344), (8, 156920215), (10, 125536172), (20, 62768086), (40, 31384043), (83, 15124840), (109, 11517080), (166, 7562420), (218, 5758540), (332, 3781210), (415, 3024968), (436, 2879270), (545, 2303416), (664, 1890605), (830, 1512484), (872, 1439635), (1090, 1151708), (1660, 756242), (2180, 575854), (3320, 378121), (3469, 361880), (4360, 287927), (6938, 180940), (9047, 138760), (13876, 90470), (17345, 72376), (18094, 69380), (27752, 45235), (34690, 36188)]