28397000

素因数分解:

$2^3\times 5^3\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 67532400

約数和(自身を除く): 39135400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 125, 146, 200, 250, 292, 365, 389, 500, 584, 730, 778, 1000, 1460, 1556, 1825, 1945, 2920, 3112, 3650, 3890, 7300, 7780, 9125, 9725, 14600, 15560, 18250, 19450, 28397, 36500, 38900, 48625, 56794, 73000, 77800, 97250, 113588, 141985, 194500, 227176, 283970, 389000, 567940, 709925, 1135880, 1419850, 2839700, 3549625, 5679400, 7099250, 14198500, 28397000]

約数ペア:

[(1, 28397000), (2, 14198500), (4, 7099250), (5, 5679400), (8, 3549625), (10, 2839700), (20, 1419850), (25, 1135880), (40, 709925), (50, 567940), (73, 389000), (100, 283970), (125, 227176), (146, 194500), (200, 141985), (250, 113588), (292, 97250), (365, 77800), (389, 73000), (500, 56794), (584, 48625), (730, 38900), (778, 36500), (1000, 28397), (1460, 19450), (1556, 18250), (1825, 15560), (1945, 14600), (2920, 9725), (3112, 9125), (3650, 7780), (3890, 7300)]