20279245490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{751}}^1$

素因数の和:1120

約数の個数: 128

約数和(自身を含む): 44701286400

約数和(自身を除く): 24422040910

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 79, 95, 133, 158, 190, 257, 266, 395, 514, 553, 665, 751, 790, 1106, 1285, 1330, 1501, 1502, 1799, 2570, 2765, 3002, 3598, 3755, 4883, 5257, 5530, 7505, 7510, 8995, 9766, 10507, 10514, 14269, 15010, 17990, 20303, 21014, 24415, 26285, 28538, 34181, 40606, 48830, 52535, 52570, 59329, 68362, 71345, 99883, 101515, 105070, 118658, 142121, 142690, 170905, 193007, 199766, 203030, 284242, 296645, 341810, 385757, 386014, 415303, 499415, 593290, 710605, 771514, 830606, 965035, 998830, 1127251, 1351049, 1421210, 1928785, 1930070, 2076515, 2254502, 2700299, 2702098, 3667133, 3857570, 4153030, 5400598, 5636255, 6755245, 7334266, 7890757, 11272510, 13501495, 13510490, 15247553, 15781514, 18335665, 25669931, 27002990, 30495106, 36671330, 39453785, 51339862, 76237765, 78907570, 106732871, 128349655, 152475530, 213465742, 256699310, 289703507, 533664355, 579407014, 1067328710, 1448517535, 2027924549, 2897035070, 4055849098, 10139622745, 20279245490]

約数ペア:

[(1, 20279245490), (2, 10139622745), (5, 4055849098), (7, 2897035070), (10, 2027924549), (14, 1448517535), (19, 1067328710), (35, 579407014), (38, 533664355), (70, 289703507), (79, 256699310), (95, 213465742), (133, 152475530), (158, 128349655), (190, 106732871), (257, 78907570), (266, 76237765), (395, 51339862), (514, 39453785), (553, 36671330), (665, 30495106), (751, 27002990), (790, 25669931), (1106, 18335665), (1285, 15781514), (1330, 15247553), (1501, 13510490), (1502, 13501495), (1799, 11272510), (2570, 7890757), (2765, 7334266), (3002, 6755245), (3598, 5636255), (3755, 5400598), (4883, 4153030), (5257, 3857570), (5530, 3667133), (7505, 2702098), (7510, 2700299), (8995, 2254502), (9766, 2076515), (10507, 1930070), (10514, 1928785), (14269, 1421210), (15010, 1351049), (17990, 1127251), (20303, 998830), (21014, 965035), (24415, 830606), (26285, 771514), (28538, 710605), (34181, 593290), (40606, 499415), (48830, 415303), (52535, 386014), (52570, 385757), (59329, 341810), (68362, 296645), (71345, 284242), (99883, 203030), (101515, 199766), (105070, 193007), (118658, 170905), (142121, 142690)]