28607240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 66573360

約数和(自身を除く): 37966120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 97, 101, 146, 194, 202, 292, 365, 388, 404, 485, 505, 584, 730, 776, 808, 970, 1010, 1460, 1940, 2020, 2920, 3880, 4040, 7081, 7373, 9797, 14162, 14746, 19594, 28324, 29492, 35405, 36865, 39188, 48985, 56648, 58984, 70810, 73730, 78376, 97970, 141620, 147460, 195940, 283240, 294920, 391880, 715181, 1430362, 2860724, 3575905, 5721448, 7151810, 14303620, 28607240]

約数ペア:

[(1, 28607240), (2, 14303620), (4, 7151810), (5, 5721448), (8, 3575905), (10, 2860724), (20, 1430362), (40, 715181), (73, 391880), (97, 294920), (101, 283240), (146, 195940), (194, 147460), (202, 141620), (292, 97970), (365, 78376), (388, 73730), (404, 70810), (485, 58984), (505, 56648), (584, 48985), (730, 39188), (776, 36865), (808, 35405), (970, 29492), (1010, 28324), (1460, 19594), (1940, 14746), (2020, 14162), (2920, 9797), (3880, 7373), (4040, 7081)]