20828520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1231}}^1$

素因数の和:1295

約数の個数: 96

約数和(自身を含む): 69189120

約数和(自身を除く): 48360600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 360, 376, 423, 470, 564, 705, 846, 940, 1128, 1231, 1410, 1692, 1880, 2115, 2462, 2820, 3384, 3693, 4230, 4924, 5640, 6155, 7386, 8460, 9848, 11079, 12310, 14772, 16920, 18465, 22158, 24620, 29544, 36930, 44316, 49240, 55395, 57857, 73860, 88632, 110790, 115714, 147720, 173571, 221580, 231428, 289285, 347142, 443160, 462856, 520713, 578570, 694284, 867855, 1041426, 1157140, 1388568, 1735710, 2082852, 2314280, 2603565, 3471420, 4165704, 5207130, 6942840, 10414260, 20828520]

約数ペア:

[(1, 20828520), (2, 10414260), (3, 6942840), (4, 5207130), (5, 4165704), (6, 3471420), (8, 2603565), (9, 2314280), (10, 2082852), (12, 1735710), (15, 1388568), (18, 1157140), (20, 1041426), (24, 867855), (30, 694284), (36, 578570), (40, 520713), (45, 462856), (47, 443160), (60, 347142), (72, 289285), (90, 231428), (94, 221580), (120, 173571), (141, 147720), (180, 115714), (188, 110790), (235, 88632), (282, 73860), (360, 57857), (376, 55395), (423, 49240), (470, 44316), (564, 36930), (705, 29544), (846, 24620), (940, 22158), (1128, 18465), (1231, 16920), (1410, 14772), (1692, 12310), (1880, 11079), (2115, 9848), (2462, 8460), (2820, 7386), (3384, 6155), (3693, 5640), (4230, 4924)]