680908900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1759}}^1$

素因数の和:1866

約数の個数: 108

約数和(自身を含む): 1741555200

約数和(自身を除く): 1060646300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 79, 98, 100, 140, 158, 175, 196, 245, 316, 350, 395, 490, 553, 700, 790, 980, 1106, 1225, 1580, 1759, 1975, 2212, 2450, 2765, 3518, 3871, 3950, 4900, 5530, 7036, 7742, 7900, 8795, 11060, 12313, 13825, 15484, 17590, 19355, 24626, 27650, 35180, 38710, 43975, 49252, 55300, 61565, 77420, 86191, 87950, 96775, 123130, 138961, 172382, 175900, 193550, 246260, 277922, 307825, 344764, 387100, 430955, 555844, 615650, 694805, 861910, 972727, 1231300, 1389610, 1723820, 1945454, 2154775, 2779220, 3474025, 3890908, 4309550, 4863635, 6809089, 6948050, 8619100, 9727270, 13618178, 13896100, 19454540, 24318175, 27236356, 34045445, 48636350, 68090890, 97272700, 136181780, 170227225, 340454450, 680908900]

約数ペア:

[(1, 680908900), (2, 340454450), (4, 170227225), (5, 136181780), (7, 97272700), (10, 68090890), (14, 48636350), (20, 34045445), (25, 27236356), (28, 24318175), (35, 19454540), (49, 13896100), (50, 13618178), (70, 9727270), (79, 8619100), (98, 6948050), (100, 6809089), (140, 4863635), (158, 4309550), (175, 3890908), (196, 3474025), (245, 2779220), (316, 2154775), (350, 1945454), (395, 1723820), (490, 1389610), (553, 1231300), (700, 972727), (790, 861910), (980, 694805), (1106, 615650), (1225, 555844), (1580, 430955), (1759, 387100), (1975, 344764), (2212, 307825), (2450, 277922), (2765, 246260), (3518, 193550), (3871, 175900), (3950, 172382), (4900, 138961), (5530, 123130), (7036, 96775), (7742, 87950), (7900, 86191), (8795, 77420), (11060, 61565), (12313, 55300), (13825, 49252), (15484, 43975), (17590, 38710), (19355, 35180), (24626, 27650)]