2017430920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 4810544640

約数和(自身を除く): 2793113720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 73, 74, 142, 146, 148, 185, 263, 284, 292, 296, 355, 365, 370, 526, 568, 584, 710, 730, 740, 1052, 1315, 1420, 1460, 1480, 2104, 2627, 2630, 2701, 2840, 2920, 5183, 5254, 5260, 5402, 9731, 10366, 10508, 10520, 10804, 13135, 13505, 18673, 19199, 19462, 20732, 21016, 21608, 25915, 26270, 27010, 37346, 38398, 38924, 41464, 48655, 51830, 52540, 54020, 74692, 76796, 77848, 93365, 95995, 97310, 103660, 105080, 108040, 149384, 153592, 186730, 191771, 191990, 194620, 207320, 373460, 383542, 383980, 389240, 690901, 710363, 746920, 767084, 767960, 958855, 1363129, 1381802, 1420726, 1534168, 1917710, 2726258, 2763604, 2841452, 3454505, 3551815, 3835420, 5452516, 5527208, 5682904, 6815645, 6909010, 7103630, 7670840, 10905032, 13631290, 13818020, 14207260, 27262580, 27636040, 28414520, 50435773, 54525160, 100871546, 201743092, 252178865, 403486184, 504357730, 1008715460, 2017430920]

約数ペア:

[(1, 2017430920), (2, 1008715460), (4, 504357730), (5, 403486184), (8, 252178865), (10, 201743092), (20, 100871546), (37, 54525160), (40, 50435773), (71, 28414520), (73, 27636040), (74, 27262580), (142, 14207260), (146, 13818020), (148, 13631290), (185, 10905032), (263, 7670840), (284, 7103630), (292, 6909010), (296, 6815645), (355, 5682904), (365, 5527208), (370, 5452516), (526, 3835420), (568, 3551815), (584, 3454505), (710, 2841452), (730, 2763604), (740, 2726258), (1052, 1917710), (1315, 1534168), (1420, 1420726), (1460, 1381802), (1480, 1363129), (2104, 958855), (2627, 767960), (2630, 767084), (2701, 746920), (2840, 710363), (2920, 690901), (5183, 389240), (5254, 383980), (5260, 383542), (5402, 373460), (9731, 207320), (10366, 194620), (10508, 191990), (10520, 191771), (10804, 186730), (13135, 153592), (13505, 149384), (18673, 108040), (19199, 105080), (19462, 103660), (20732, 97310), (21016, 95995), (21608, 93365), (25915, 77848), (26270, 76796), (27010, 74692), (37346, 54020), (38398, 52540), (38924, 51830), (41464, 48655)]