61697840

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 149454720

約数和(自身を除く): 87756880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 61, 80, 94, 122, 188, 235, 244, 269, 305, 376, 470, 488, 538, 610, 752, 940, 976, 1076, 1220, 1345, 1880, 2152, 2440, 2690, 2867, 3760, 4304, 4880, 5380, 5734, 10760, 11468, 12643, 14335, 16409, 21520, 22936, 25286, 28670, 32818, 45872, 50572, 57340, 63215, 65636, 82045, 101144, 114680, 126430, 131272, 164090, 202288, 229360, 252860, 262544, 328180, 505720, 656360, 771223, 1011440, 1312720, 1542446, 3084892, 3856115, 6169784, 7712230, 12339568, 15424460, 30848920, 61697840]

約数ペア:

[(1, 61697840), (2, 30848920), (4, 15424460), (5, 12339568), (8, 7712230), (10, 6169784), (16, 3856115), (20, 3084892), (40, 1542446), (47, 1312720), (61, 1011440), (80, 771223), (94, 656360), (122, 505720), (188, 328180), (235, 262544), (244, 252860), (269, 229360), (305, 202288), (376, 164090), (470, 131272), (488, 126430), (538, 114680), (610, 101144), (752, 82045), (940, 65636), (976, 63215), (1076, 57340), (1220, 50572), (1345, 45872), (1880, 32818), (2152, 28670), (2440, 25286), (2690, 22936), (2867, 21520), (3760, 16409), (4304, 14335), (4880, 12643), (5380, 11468), (5734, 10760)]