80839980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 266928480

約数和(自身を除く): 186088500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 179, 180, 193, 195, 234, 260, 358, 386, 390, 468, 537, 579, 585, 716, 772, 780, 895, 965, 1074, 1158, 1170, 1611, 1737, 1790, 1930, 2148, 2316, 2327, 2340, 2509, 2685, 2895, 3222, 3474, 3580, 3860, 4654, 5018, 5370, 5790, 6444, 6948, 6981, 7527, 8055, 8685, 9308, 10036, 10740, 11580, 11635, 12545, 13962, 15054, 16110, 17370, 20943, 22581, 23270, 25090, 27924, 30108, 32220, 34547, 34740, 34905, 37635, 41886, 45162, 46540, 50180, 69094, 69810, 75270, 83772, 90324, 103641, 104715, 112905, 138188, 139620, 150540, 172735, 207282, 209430, 225810, 310923, 345470, 414564, 418860, 449111, 451620, 518205, 621846, 690940, 898222, 1036410, 1243692, 1347333, 1554615, 1796444, 2072820, 2245555, 2694666, 3109230, 4041999, 4491110, 5389332, 6218460, 6736665, 8083998, 8982220, 13473330, 16167996, 20209995, 26946660, 40419990, 80839980]

約数ペア:

[(1, 80839980), (2, 40419990), (3, 26946660), (4, 20209995), (5, 16167996), (6, 13473330), (9, 8982220), (10, 8083998), (12, 6736665), (13, 6218460), (15, 5389332), (18, 4491110), (20, 4041999), (26, 3109230), (30, 2694666), (36, 2245555), (39, 2072820), (45, 1796444), (52, 1554615), (60, 1347333), (65, 1243692), (78, 1036410), (90, 898222), (117, 690940), (130, 621846), (156, 518205), (179, 451620), (180, 449111), (193, 418860), (195, 414564), (234, 345470), (260, 310923), (358, 225810), (386, 209430), (390, 207282), (468, 172735), (537, 150540), (579, 139620), (585, 138188), (716, 112905), (772, 104715), (780, 103641), (895, 90324), (965, 83772), (1074, 75270), (1158, 69810), (1170, 69094), (1611, 50180), (1737, 46540), (1790, 45162), (1930, 41886), (2148, 37635), (2316, 34905), (2327, 34740), (2340, 34547), (2509, 32220), (2685, 30108), (2895, 27924), (3222, 25090), (3474, 23270), (3580, 22581), (3860, 20943), (4654, 17370), (5018, 16110), (5370, 15054), (5790, 13962), (6444, 12545), (6948, 11635), (6981, 11580), (7527, 10740), (8055, 10036), (8685, 9308)]