2449000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 64

約数和(自身を含む): 5990400

約数和(自身を除く): 3541400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 79, 100, 124, 125, 155, 158, 200, 248, 250, 310, 316, 395, 500, 620, 632, 775, 790, 1000, 1240, 1550, 1580, 1975, 2449, 3100, 3160, 3875, 3950, 4898, 6200, 7750, 7900, 9796, 9875, 12245, 15500, 15800, 19592, 19750, 24490, 31000, 39500, 48980, 61225, 79000, 97960, 122450, 244900, 306125, 489800, 612250, 1224500, 2449000]

約数ペア:

[(1, 2449000), (2, 1224500), (4, 612250), (5, 489800), (8, 306125), (10, 244900), (20, 122450), (25, 97960), (31, 79000), (40, 61225), (50, 48980), (62, 39500), (79, 31000), (100, 24490), (124, 19750), (125, 19592), (155, 15800), (158, 15500), (200, 12245), (248, 9875), (250, 9796), (310, 7900), (316, 7750), (395, 6200), (500, 4898), (620, 3950), (632, 3875), (775, 3160), (790, 3100), (1000, 2449), (1240, 1975), (1550, 1580)]