2505750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 6761664

約数和(自身を除く): 4255914

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 257, 325, 375, 390, 514, 650, 750, 771, 975, 1285, 1542, 1625, 1950, 2570, 3250, 3341, 3855, 4875, 6425, 6682, 7710, 9750, 10023, 12850, 16705, 19275, 20046, 32125, 33410, 38550, 50115, 64250, 83525, 96375, 100230, 167050, 192750, 250575, 417625, 501150, 835250, 1252875, 2505750]

約数ペア:

[(1, 2505750), (2, 1252875), (3, 835250), (5, 501150), (6, 417625), (10, 250575), (13, 192750), (15, 167050), (25, 100230), (26, 96375), (30, 83525), (39, 64250), (50, 50115), (65, 38550), (75, 33410), (78, 32125), (125, 20046), (130, 19275), (150, 16705), (195, 12850), (250, 10023), (257, 9750), (325, 7710), (375, 6682), (390, 6425), (514, 4875), (650, 3855), (750, 3341), (771, 3250), (975, 2570), (1285, 1950), (1542, 1625)]