28631250

素因数分解:

$2^1\times 3^2\times 5^5\times {\mathrm{509}}^1$

素因数の和:542

約数の個数: 72

約数和(自身を含む): 77690340

約数和(自身を除く): 49059090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 509, 625, 750, 1018, 1125, 1250, 1527, 1875, 2250, 2545, 3054, 3125, 3750, 4581, 5090, 5625, 6250, 7635, 9162, 9375, 11250, 12725, 15270, 18750, 22905, 25450, 28125, 38175, 45810, 56250, 63625, 76350, 114525, 127250, 190875, 229050, 318125, 381750, 572625, 636250, 954375, 1145250, 1590625, 1908750, 2863125, 3181250, 4771875, 5726250, 9543750, 14315625, 28631250]

約数ペア:

[(1, 28631250), (2, 14315625), (3, 9543750), (5, 5726250), (6, 4771875), (9, 3181250), (10, 2863125), (15, 1908750), (18, 1590625), (25, 1145250), (30, 954375), (45, 636250), (50, 572625), (75, 381750), (90, 318125), (125, 229050), (150, 190875), (225, 127250), (250, 114525), (375, 76350), (450, 63625), (509, 56250), (625, 45810), (750, 38175), (1018, 28125), (1125, 25450), (1250, 22905), (1527, 18750), (1875, 15270), (2250, 12725), (2545, 11250), (3054, 9375), (3125, 9162), (3750, 7635), (4581, 6250), (5090, 5625)]