260821000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 128

約数和(自身を含む): 674593920

約数和(自身を除く): 413772920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 131, 181, 200, 220, 250, 262, 275, 362, 440, 500, 524, 550, 655, 724, 905, 1000, 1048, 1100, 1310, 1375, 1441, 1448, 1810, 1991, 2200, 2620, 2750, 2882, 3275, 3620, 3982, 4525, 5240, 5500, 5764, 6550, 7205, 7240, 7964, 9050, 9955, 11000, 11528, 13100, 14410, 15928, 16375, 18100, 19910, 22625, 23711, 26200, 28820, 32750, 36025, 36200, 39820, 45250, 47422, 49775, 57640, 65500, 72050, 79640, 90500, 94844, 99550, 118555, 131000, 144100, 180125, 181000, 189688, 199100, 237110, 248875, 260821, 288200, 360250, 398200, 474220, 497750, 521642, 592775, 720500, 948440, 995500, 1043284, 1185550, 1304105, 1441000, 1991000, 2086568, 2371100, 2608210, 2963875, 4742200, 5216420, 5927750, 6520525, 10432840, 11855500, 13041050, 23711000, 26082100, 32602625, 52164200, 65205250, 130410500, 260821000]

約数ペア:

[(1, 260821000), (2, 130410500), (4, 65205250), (5, 52164200), (8, 32602625), (10, 26082100), (11, 23711000), (20, 13041050), (22, 11855500), (25, 10432840), (40, 6520525), (44, 5927750), (50, 5216420), (55, 4742200), (88, 2963875), (100, 2608210), (110, 2371100), (125, 2086568), (131, 1991000), (181, 1441000), (200, 1304105), (220, 1185550), (250, 1043284), (262, 995500), (275, 948440), (362, 720500), (440, 592775), (500, 521642), (524, 497750), (550, 474220), (655, 398200), (724, 360250), (905, 288200), (1000, 260821), (1048, 248875), (1100, 237110), (1310, 199100), (1375, 189688), (1441, 181000), (1448, 180125), (1810, 144100), (1991, 131000), (2200, 118555), (2620, 99550), (2750, 94844), (2882, 90500), (3275, 79640), (3620, 72050), (3982, 65500), (4525, 57640), (5240, 49775), (5500, 47422), (5764, 45250), (6550, 39820), (7205, 36200), (7240, 36025), (7964, 32750), (9050, 28820), (9955, 26200), (11000, 23711), (11528, 22625), (13100, 19910), (14410, 18100), (15928, 16375)]