28261550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:521

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 27984850

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 71, 95, 142, 190, 355, 419, 475, 710, 838, 950, 1349, 1775, 2095, 2698, 3550, 4190, 6745, 7961, 10475, 13490, 15922, 20950, 29749, 33725, 39805, 59498, 67450, 79610, 148745, 199025, 297490, 398050, 565231, 743725, 1130462, 1487450, 2826155, 5652310, 14130775, 28261550]

約数ペア:

[(1, 28261550), (2, 14130775), (5, 5652310), (10, 2826155), (19, 1487450), (25, 1130462), (38, 743725), (50, 565231), (71, 398050), (95, 297490), (142, 199025), (190, 148745), (355, 79610), (419, 67450), (475, 59498), (710, 39805), (838, 33725), (950, 29749), (1349, 20950), (1775, 15922), (2095, 13490), (2698, 10475), (3550, 7961), (4190, 6745)]