28465480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1021}}^1$

素因数の和:1090

約数の個数: 64

約数和(自身を含む): 69536880

約数和(自身を除く): 41071400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1021, 1394, 1640, 2042, 2788, 3485, 4084, 5105, 5576, 6970, 8168, 10210, 13940, 17357, 20420, 27880, 34714, 40840, 41861, 69428, 83722, 86785, 138856, 167444, 173570, 209305, 334888, 347140, 418610, 694280, 711637, 837220, 1423274, 1674440, 2846548, 3558185, 5693096, 7116370, 14232740, 28465480]

約数ペア:

[(1, 28465480), (2, 14232740), (4, 7116370), (5, 5693096), (8, 3558185), (10, 2846548), (17, 1674440), (20, 1423274), (34, 837220), (40, 711637), (41, 694280), (68, 418610), (82, 347140), (85, 334888), (136, 209305), (164, 173570), (170, 167444), (205, 138856), (328, 86785), (340, 83722), (410, 69428), (680, 41861), (697, 40840), (820, 34714), (1021, 27880), (1394, 20420), (1640, 17357), (2042, 13940), (2788, 10210), (3485, 8168), (4084, 6970), (5105, 5576)]