20121780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2083}}^1$

素因数の和:2125

約数の個数: 96

約数和(自身を含む): 67221504

約数和(自身を除く): 47099724

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2083, 2415, 3220, 4166, 4830, 6249, 8332, 9660, 10415, 12498, 14581, 20830, 24996, 29162, 31245, 41660, 43743, 47909, 58324, 62490, 72905, 87486, 95818, 124980, 143727, 145810, 174972, 191636, 218715, 239545, 287454, 291620, 335363, 437430, 479090, 574908, 670726, 718635, 874860, 958180, 1006089, 1341452, 1437270, 1676815, 2012178, 2874540, 3353630, 4024356, 5030445, 6707260, 10060890, 20121780]

約数ペア:

[(1, 20121780), (2, 10060890), (3, 6707260), (4, 5030445), (5, 4024356), (6, 3353630), (7, 2874540), (10, 2012178), (12, 1676815), (14, 1437270), (15, 1341452), (20, 1006089), (21, 958180), (23, 874860), (28, 718635), (30, 670726), (35, 574908), (42, 479090), (46, 437430), (60, 335363), (69, 291620), (70, 287454), (84, 239545), (92, 218715), (105, 191636), (115, 174972), (138, 145810), (140, 143727), (161, 124980), (210, 95818), (230, 87486), (276, 72905), (322, 62490), (345, 58324), (420, 47909), (460, 43743), (483, 41660), (644, 31245), (690, 29162), (805, 24996), (966, 20830), (1380, 14581), (1610, 12498), (1932, 10415), (2083, 9660), (2415, 8332), (3220, 6249), (4166, 4830)]