81322380

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:630

約数の個数: 144

約数和(自身を含む): 265093920

約数和(自身を除く): 183771540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 162, 174, 180, 243, 261, 270, 290, 324, 348, 405, 435, 486, 522, 540, 577, 580, 783, 810, 870, 972, 1044, 1154, 1215, 1305, 1566, 1620, 1731, 1740, 2308, 2349, 2430, 2610, 2885, 3132, 3462, 3915, 4698, 4860, 5193, 5220, 5770, 6924, 7047, 7830, 8655, 9396, 10386, 11540, 11745, 14094, 15579, 15660, 16733, 17310, 20772, 23490, 25965, 28188, 31158, 33466, 34620, 35235, 46737, 46980, 50199, 51930, 62316, 66932, 70470, 77895, 83665, 93474, 100398, 103860, 140211, 140940, 150597, 155790, 167330, 186948, 200796, 233685, 250995, 280422, 301194, 311580, 334660, 451791, 467370, 501990, 560844, 602388, 701055, 752985, 903582, 934740, 1003980, 1355373, 1402110, 1505970, 1807164, 2258955, 2710746, 2804220, 3011940, 4066119, 4517910, 5421492, 6776865, 8132238, 9035820, 13553730, 16264476, 20330595, 27107460, 40661190, 81322380]

約数ペア:

[(1, 81322380), (2, 40661190), (3, 27107460), (4, 20330595), (5, 16264476), (6, 13553730), (9, 9035820), (10, 8132238), (12, 6776865), (15, 5421492), (18, 4517910), (20, 4066119), (27, 3011940), (29, 2804220), (30, 2710746), (36, 2258955), (45, 1807164), (54, 1505970), (58, 1402110), (60, 1355373), (81, 1003980), (87, 934740), (90, 903582), (108, 752985), (116, 701055), (135, 602388), (145, 560844), (162, 501990), (174, 467370), (180, 451791), (243, 334660), (261, 311580), (270, 301194), (290, 280422), (324, 250995), (348, 233685), (405, 200796), (435, 186948), (486, 167330), (522, 155790), (540, 150597), (577, 140940), (580, 140211), (783, 103860), (810, 100398), (870, 93474), (972, 83665), (1044, 77895), (1154, 70470), (1215, 66932), (1305, 62316), (1566, 51930), (1620, 50199), (1731, 46980), (1740, 46737), (2308, 35235), (2349, 34620), (2430, 33466), (2610, 31158), (2885, 28188), (3132, 25965), (3462, 23490), (3915, 20772), (4698, 17310), (4860, 16733), (5193, 15660), (5220, 15579), (5770, 14094), (6924, 11745), (7047, 11540), (7830, 10386), (8655, 9396)]