1305720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:67

約数の個数: 160

約数和(自身を含む): 4878720

約数和(自身を除く): 3573000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 31, 36, 39, 40, 45, 52, 54, 60, 62, 65, 72, 78, 81, 90, 93, 104, 108, 117, 120, 124, 130, 135, 155, 156, 162, 180, 186, 195, 216, 234, 248, 260, 270, 279, 310, 312, 324, 351, 360, 372, 390, 403, 405, 465, 468, 520, 540, 558, 585, 620, 648, 702, 744, 780, 806, 810, 837, 930, 936, 1053, 1080, 1116, 1170, 1209, 1240, 1395, 1404, 1560, 1612, 1620, 1674, 1755, 1860, 2015, 2106, 2232, 2340, 2418, 2511, 2790, 2808, 3224, 3240, 3348, 3510, 3627, 3720, 4030, 4185, 4212, 4680, 4836, 5022, 5265, 5580, 6045, 6696, 7020, 7254, 8060, 8370, 8424, 9672, 10044, 10530, 10881, 11160, 12090, 12555, 14040, 14508, 16120, 16740, 18135, 20088, 21060, 21762, 24180, 25110, 29016, 32643, 33480, 36270, 42120, 43524, 48360, 50220, 54405, 65286, 72540, 87048, 100440, 108810, 130572, 145080, 163215, 217620, 261144, 326430, 435240, 652860, 1305720]

約数ペア:

[(1, 1305720), (2, 652860), (3, 435240), (4, 326430), (5, 261144), (6, 217620), (8, 163215), (9, 145080), (10, 130572), (12, 108810), (13, 100440), (15, 87048), (18, 72540), (20, 65286), (24, 54405), (26, 50220), (27, 48360), (30, 43524), (31, 42120), (36, 36270), (39, 33480), (40, 32643), (45, 29016), (52, 25110), (54, 24180), (60, 21762), (62, 21060), (65, 20088), (72, 18135), (78, 16740), (81, 16120), (90, 14508), (93, 14040), (104, 12555), (108, 12090), (117, 11160), (120, 10881), (124, 10530), (130, 10044), (135, 9672), (155, 8424), (156, 8370), (162, 8060), (180, 7254), (186, 7020), (195, 6696), (216, 6045), (234, 5580), (248, 5265), (260, 5022), (270, 4836), (279, 4680), (310, 4212), (312, 4185), (324, 4030), (351, 3720), (360, 3627), (372, 3510), (390, 3348), (403, 3240), (405, 3224), (465, 2808), (468, 2790), (520, 2511), (540, 2418), (558, 2340), (585, 2232), (620, 2106), (648, 2015), (702, 1860), (744, 1755), (780, 1674), (806, 1620), (810, 1612), (837, 1560), (930, 1404), (936, 1395), (1053, 1240), (1080, 1209), (1116, 1170)]