28840840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 80559360

約数和(自身を除く): 51718520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 73, 83, 85, 119, 136, 140, 146, 166, 170, 238, 280, 292, 332, 340, 365, 415, 476, 511, 581, 584, 595, 664, 680, 730, 830, 952, 1022, 1162, 1190, 1241, 1411, 1460, 1660, 2044, 2324, 2380, 2482, 2555, 2822, 2905, 2920, 3320, 4088, 4648, 4760, 4964, 5110, 5644, 5810, 6059, 6205, 7055, 8687, 9877, 9928, 10220, 11288, 11620, 12118, 12410, 14110, 17374, 19754, 20440, 23240, 24236, 24820, 28220, 30295, 34748, 39508, 42413, 43435, 48472, 49385, 49640, 56440, 60590, 69496, 79016, 84826, 86870, 98770, 103003, 121180, 169652, 173740, 197540, 206006, 212065, 242360, 339304, 347480, 395080, 412012, 424130, 515015, 721021, 824024, 848260, 1030030, 1442042, 1696520, 2060060, 2884084, 3605105, 4120120, 5768168, 7210210, 14420420, 28840840]

約数ペア:

[(1, 28840840), (2, 14420420), (4, 7210210), (5, 5768168), (7, 4120120), (8, 3605105), (10, 2884084), (14, 2060060), (17, 1696520), (20, 1442042), (28, 1030030), (34, 848260), (35, 824024), (40, 721021), (56, 515015), (68, 424130), (70, 412012), (73, 395080), (83, 347480), (85, 339304), (119, 242360), (136, 212065), (140, 206006), (146, 197540), (166, 173740), (170, 169652), (238, 121180), (280, 103003), (292, 98770), (332, 86870), (340, 84826), (365, 79016), (415, 69496), (476, 60590), (511, 56440), (581, 49640), (584, 49385), (595, 48472), (664, 43435), (680, 42413), (730, 39508), (830, 34748), (952, 30295), (1022, 28220), (1162, 24820), (1190, 24236), (1241, 23240), (1411, 20440), (1460, 19754), (1660, 17374), (2044, 14110), (2324, 12410), (2380, 12118), (2482, 11620), (2555, 11288), (2822, 10220), (2905, 9928), (2920, 9877), (3320, 8687), (4088, 7055), (4648, 6205), (4760, 6059), (4964, 5810), (5110, 5644)]