640717560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{84751}}^1$

素因数の和:84778

約数の個数: 128

約数和(自身を含む): 2440857600

約数和(自身を除く): 1800140040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 84751, 169502, 254253, 339004, 423755, 508506, 593257, 678008, 762759, 847510, 1017012, 1186514, 1271265, 1525518, 1695020, 1779771, 2034024, 2288277, 2373028, 2542530, 2966285, 3051036, 3390040, 3559542, 3813795, 4576554, 4746056, 5085060, 5339313, 5932570, 6102072, 7119084, 7627590, 8898855, 9153108, 10170120, 10678626, 11441385, 11865140, 14238168, 15255180, 16017939, 17797710, 18306216, 21357252, 22882770, 23730280, 26696565, 30510360, 32035878, 35595420, 42714504, 45765540, 53393130, 64071756, 71190840, 80089695, 91531080, 106786260, 128143512, 160179390, 213572520, 320358780, 640717560]

約数ペア:

[(1, 640717560), (2, 320358780), (3, 213572520), (4, 160179390), (5, 128143512), (6, 106786260), (7, 91531080), (8, 80089695), (9, 71190840), (10, 64071756), (12, 53393130), (14, 45765540), (15, 42714504), (18, 35595420), (20, 32035878), (21, 30510360), (24, 26696565), (27, 23730280), (28, 22882770), (30, 21357252), (35, 18306216), (36, 17797710), (40, 16017939), (42, 15255180), (45, 14238168), (54, 11865140), (56, 11441385), (60, 10678626), (63, 10170120), (70, 9153108), (72, 8898855), (84, 7627590), (90, 7119084), (105, 6102072), (108, 5932570), (120, 5339313), (126, 5085060), (135, 4746056), (140, 4576554), (168, 3813795), (180, 3559542), (189, 3390040), (210, 3051036), (216, 2966285), (252, 2542530), (270, 2373028), (280, 2288277), (315, 2034024), (360, 1779771), (378, 1695020), (420, 1525518), (504, 1271265), (540, 1186514), (630, 1017012), (756, 847510), (840, 762759), (945, 678008), (1080, 593257), (1260, 508506), (1512, 423755), (1890, 339004), (2520, 254253), (3780, 169502), (7560, 84751)]