400721280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12277}}^1$

素因数の和:12316

約数の個数: 128

約数和(自身を含む): 1352544480

約数和(自身を除く): 951823200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 816, 960, 1020, 1088, 1360, 1632, 1920, 2040, 2176, 2720, 3264, 4080, 5440, 6528, 8160, 10880, 12277, 16320, 24554, 32640, 36831, 49108, 61385, 73662, 98216, 122770, 147324, 184155, 196432, 208709, 245540, 294648, 368310, 392864, 417418, 491080, 589296, 626127, 736620, 785728, 834836, 982160, 1043545, 1178592, 1252254, 1473240, 1571456, 1669672, 1964320, 2087090, 2357184, 2504508, 2946480, 3130635, 3339344, 3928640, 4174180, 4714368, 5009016, 5892960, 6261270, 6678688, 7857280, 8348360, 10018032, 11785920, 12522540, 13357376, 16696720, 20036064, 23571840, 25045080, 26714752, 33393440, 40072128, 50090160, 66786880, 80144256, 100180320, 133573760, 200360640, 400721280]

約数ペア:

[(1, 400721280), (2, 200360640), (3, 133573760), (4, 100180320), (5, 80144256), (6, 66786880), (8, 50090160), (10, 40072128), (12, 33393440), (15, 26714752), (16, 25045080), (17, 23571840), (20, 20036064), (24, 16696720), (30, 13357376), (32, 12522540), (34, 11785920), (40, 10018032), (48, 8348360), (51, 7857280), (60, 6678688), (64, 6261270), (68, 5892960), (80, 5009016), (85, 4714368), (96, 4174180), (102, 3928640), (120, 3339344), (128, 3130635), (136, 2946480), (160, 2504508), (170, 2357184), (192, 2087090), (204, 1964320), (240, 1669672), (255, 1571456), (272, 1473240), (320, 1252254), (340, 1178592), (384, 1043545), (408, 982160), (480, 834836), (510, 785728), (544, 736620), (640, 626127), (680, 589296), (816, 491080), (960, 417418), (1020, 392864), (1088, 368310), (1360, 294648), (1632, 245540), (1920, 208709), (2040, 196432), (2176, 184155), (2720, 147324), (3264, 122770), (4080, 98216), (5440, 73662), (6528, 61385), (8160, 49108), (10880, 36831), (12277, 32640), (16320, 24554)]