68495140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1889}}^1$

素因数の和:1949

約数の個数: 72

約数和(自身を含む): 171937080

約数和(自身を除く): 103441940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 1889, 2590, 3626, 3778, 5180, 7252, 7556, 9065, 9445, 13223, 18130, 18890, 26446, 36260, 37780, 52892, 66115, 69893, 92561, 132230, 139786, 185122, 264460, 279572, 349465, 370244, 462805, 489251, 698930, 925610, 978502, 1397860, 1851220, 1957004, 2446255, 3424757, 4892510, 6849514, 9785020, 13699028, 17123785, 34247570, 68495140]

約数ペア:

[(1, 68495140), (2, 34247570), (4, 17123785), (5, 13699028), (7, 9785020), (10, 6849514), (14, 4892510), (20, 3424757), (28, 2446255), (35, 1957004), (37, 1851220), (49, 1397860), (70, 978502), (74, 925610), (98, 698930), (140, 489251), (148, 462805), (185, 370244), (196, 349465), (245, 279572), (259, 264460), (370, 185122), (490, 139786), (518, 132230), (740, 92561), (980, 69893), (1036, 66115), (1295, 52892), (1813, 37780), (1889, 36260), (2590, 26446), (3626, 18890), (3778, 18130), (5180, 13223), (7252, 9445), (7556, 9065)]