390320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:78

約数の個数: 80

約数和(自身を含む): 1124928

約数和(自身を除く): 734608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 41, 56, 68, 70, 80, 82, 85, 112, 119, 136, 140, 164, 170, 205, 238, 272, 280, 287, 328, 340, 410, 476, 560, 574, 595, 656, 680, 697, 820, 952, 1148, 1190, 1360, 1394, 1435, 1640, 1904, 2296, 2380, 2788, 2870, 3280, 3485, 4592, 4760, 4879, 5576, 5740, 6970, 9520, 9758, 11152, 11480, 13940, 19516, 22960, 24395, 27880, 39032, 48790, 55760, 78064, 97580, 195160, 390320]

約数ペア:

[(1, 390320), (2, 195160), (4, 97580), (5, 78064), (7, 55760), (8, 48790), (10, 39032), (14, 27880), (16, 24395), (17, 22960), (20, 19516), (28, 13940), (34, 11480), (35, 11152), (40, 9758), (41, 9520), (56, 6970), (68, 5740), (70, 5576), (80, 4879), (82, 4760), (85, 4592), (112, 3485), (119, 3280), (136, 2870), (140, 2788), (164, 2380), (170, 2296), (205, 1904), (238, 1640), (272, 1435), (280, 1394), (287, 1360), (328, 1190), (340, 1148), (410, 952), (476, 820), (560, 697), (574, 680), (595, 656)]