78168240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{4021}}^1$

素因数の和:4049

約数の個数: 120

約数和(自身を含む): 272305488

約数和(自身を除く): 194137248

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1620, 1944, 2160, 2430, 3240, 3888, 4021, 4860, 6480, 8042, 9720, 12063, 16084, 19440, 20105, 24126, 32168, 36189, 40210, 48252, 60315, 64336, 72378, 80420, 96504, 108567, 120630, 144756, 160840, 180945, 193008, 217134, 241260, 289512, 321680, 325701, 361890, 434268, 482520, 542835, 579024, 651402, 723780, 868536, 965040, 977103, 1085670, 1302804, 1447560, 1628505, 1737072, 1954206, 2171340, 2605608, 2895120, 3257010, 3908412, 4342680, 4885515, 5211216, 6514020, 7816824, 8685360, 9771030, 13028040, 15633648, 19542060, 26056080, 39084120, 78168240]

約数ペア:

[(1, 78168240), (2, 39084120), (3, 26056080), (4, 19542060), (5, 15633648), (6, 13028040), (8, 9771030), (9, 8685360), (10, 7816824), (12, 6514020), (15, 5211216), (16, 4885515), (18, 4342680), (20, 3908412), (24, 3257010), (27, 2895120), (30, 2605608), (36, 2171340), (40, 1954206), (45, 1737072), (48, 1628505), (54, 1447560), (60, 1302804), (72, 1085670), (80, 977103), (81, 965040), (90, 868536), (108, 723780), (120, 651402), (135, 579024), (144, 542835), (162, 482520), (180, 434268), (216, 361890), (240, 325701), (243, 321680), (270, 289512), (324, 241260), (360, 217134), (405, 193008), (432, 180945), (486, 160840), (540, 144756), (648, 120630), (720, 108567), (810, 96504), (972, 80420), (1080, 72378), (1215, 64336), (1296, 60315), (1620, 48252), (1944, 40210), (2160, 36189), (2430, 32168), (3240, 24126), (3888, 20105), (4021, 19440), (4860, 16084), (6480, 12063), (8042, 9720)]