399744720

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{20563}}^1$

素因数の和:20591

約数の個数: 120

約数和(自身を含む): 1392265056

約数和(自身を除く): 992520336

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, 4860, 6480, 9720, 19440, 20563, 41126, 61689, 82252, 102815, 123378, 164504, 185067, 205630, 246756, 308445, 329008, 370134, 411260, 493512, 555201, 616890, 740268, 822520, 925335, 987024, 1110402, 1233780, 1480536, 1645040, 1665603, 1850670, 2220804, 2467560, 2776005, 2961072, 3331206, 3701340, 4441608, 4935120, 4996809, 5552010, 6662412, 7402680, 8328015, 8883216, 9993618, 11104020, 13324824, 14805360, 16656030, 19987236, 22208040, 24984045, 26649648, 33312060, 39974472, 44416080, 49968090, 66624120, 79948944, 99936180, 133248240, 199872360, 399744720]

約数ペア:

[(1, 399744720), (2, 199872360), (3, 133248240), (4, 99936180), (5, 79948944), (6, 66624120), (8, 49968090), (9, 44416080), (10, 39974472), (12, 33312060), (15, 26649648), (16, 24984045), (18, 22208040), (20, 19987236), (24, 16656030), (27, 14805360), (30, 13324824), (36, 11104020), (40, 9993618), (45, 8883216), (48, 8328015), (54, 7402680), (60, 6662412), (72, 5552010), (80, 4996809), (81, 4935120), (90, 4441608), (108, 3701340), (120, 3331206), (135, 2961072), (144, 2776005), (162, 2467560), (180, 2220804), (216, 1850670), (240, 1665603), (243, 1645040), (270, 1480536), (324, 1233780), (360, 1110402), (405, 987024), (432, 925335), (486, 822520), (540, 740268), (648, 616890), (720, 555201), (810, 493512), (972, 411260), (1080, 370134), (1215, 329008), (1296, 308445), (1620, 246756), (1944, 205630), (2160, 185067), (2430, 164504), (3240, 123378), (3888, 102815), (4860, 82252), (6480, 61689), (9720, 41126), (19440, 20563)]