81720360

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4451}}^1$

素因数の和:4488

約数の個数: 128

約数和(自身を含む): 288489600

約数和(自身を除く): 206769240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 306, 340, 360, 408, 459, 510, 540, 612, 680, 765, 918, 1020, 1080, 1224, 1530, 1836, 2040, 2295, 3060, 3672, 4451, 4590, 6120, 8902, 9180, 13353, 17804, 18360, 22255, 26706, 35608, 40059, 44510, 53412, 66765, 75667, 80118, 89020, 106824, 120177, 133530, 151334, 160236, 178040, 200295, 227001, 240354, 267060, 302668, 320472, 378335, 400590, 454002, 480708, 534120, 600885, 605336, 681003, 756670, 801180, 908004, 961416, 1135005, 1201770, 1362006, 1513340, 1602360, 1816008, 2043009, 2270010, 2403540, 2724012, 3026680, 3405015, 4086018, 4540020, 4807080, 5448024, 6810030, 8172036, 9080040, 10215045, 13620060, 16344072, 20430090, 27240120, 40860180, 81720360]

約数ペア:

[(1, 81720360), (2, 40860180), (3, 27240120), (4, 20430090), (5, 16344072), (6, 13620060), (8, 10215045), (9, 9080040), (10, 8172036), (12, 6810030), (15, 5448024), (17, 4807080), (18, 4540020), (20, 4086018), (24, 3405015), (27, 3026680), (30, 2724012), (34, 2403540), (36, 2270010), (40, 2043009), (45, 1816008), (51, 1602360), (54, 1513340), (60, 1362006), (68, 1201770), (72, 1135005), (85, 961416), (90, 908004), (102, 801180), (108, 756670), (120, 681003), (135, 605336), (136, 600885), (153, 534120), (170, 480708), (180, 454002), (204, 400590), (216, 378335), (255, 320472), (270, 302668), (306, 267060), (340, 240354), (360, 227001), (408, 200295), (459, 178040), (510, 160236), (540, 151334), (612, 133530), (680, 120177), (765, 106824), (918, 89020), (1020, 80118), (1080, 75667), (1224, 66765), (1530, 53412), (1836, 44510), (2040, 40059), (2295, 35608), (3060, 26706), (3672, 22255), (4451, 18360), (4590, 17804), (6120, 13353), (8902, 9180)]