80661420

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{2371}}^1$

素因数の和:2402

約数の個数: 144

約数和(自身を含む): 290105088

約数和(自身を除く): 209443668

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 630, 756, 810, 945, 972, 1134, 1215, 1260, 1620, 1701, 1890, 2268, 2371, 2430, 2835, 3402, 3780, 4742, 4860, 5670, 6804, 7113, 8505, 9484, 11340, 11855, 14226, 16597, 17010, 21339, 23710, 28452, 33194, 34020, 35565, 42678, 47420, 49791, 64017, 66388, 71130, 82985, 85356, 99582, 106695, 128034, 142260, 149373, 165970, 192051, 199164, 213390, 248955, 256068, 298746, 320085, 331940, 384102, 426780, 448119, 497910, 576153, 597492, 640170, 746865, 768204, 896238, 960255, 995820, 1152306, 1280340, 1344357, 1493730, 1792476, 1920510, 2240595, 2304612, 2688714, 2880765, 2987460, 3841020, 4033071, 4481190, 5377428, 5761530, 6721785, 8066142, 8962380, 11523060, 13443570, 16132284, 20165355, 26887140, 40330710, 80661420]

約数ペア:

[(1, 80661420), (2, 40330710), (3, 26887140), (4, 20165355), (5, 16132284), (6, 13443570), (7, 11523060), (9, 8962380), (10, 8066142), (12, 6721785), (14, 5761530), (15, 5377428), (18, 4481190), (20, 4033071), (21, 3841020), (27, 2987460), (28, 2880765), (30, 2688714), (35, 2304612), (36, 2240595), (42, 1920510), (45, 1792476), (54, 1493730), (60, 1344357), (63, 1280340), (70, 1152306), (81, 995820), (84, 960255), (90, 896238), (105, 768204), (108, 746865), (126, 640170), (135, 597492), (140, 576153), (162, 497910), (180, 448119), (189, 426780), (210, 384102), (243, 331940), (252, 320085), (270, 298746), (315, 256068), (324, 248955), (378, 213390), (405, 199164), (420, 192051), (486, 165970), (540, 149373), (567, 142260), (630, 128034), (756, 106695), (810, 99582), (945, 85356), (972, 82985), (1134, 71130), (1215, 66388), (1260, 64017), (1620, 49791), (1701, 47420), (1890, 42678), (2268, 35565), (2371, 34020), (2430, 33194), (2835, 28452), (3402, 23710), (3780, 21339), (4742, 17010), (4860, 16597), (5670, 14226), (6804, 11855), (7113, 11340), (8505, 9484)]