678670280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{3299}}^1$

素因数の和:3486

約数の個数: 64

約数和(自身を含む): 1580040000

約数和(自身を除く): 901369720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 139, 148, 185, 278, 296, 370, 556, 695, 740, 1112, 1390, 1480, 2780, 3299, 5143, 5560, 6598, 10286, 13196, 16495, 20572, 25715, 26392, 32990, 41144, 51430, 65980, 102860, 122063, 131960, 205720, 244126, 458561, 488252, 610315, 917122, 976504, 1220630, 1834244, 2292805, 2441260, 3668488, 4585610, 4882520, 9171220, 16966757, 18342440, 33933514, 67867028, 84833785, 135734056, 169667570, 339335140, 678670280]

約数ペア:

[(1, 678670280), (2, 339335140), (4, 169667570), (5, 135734056), (8, 84833785), (10, 67867028), (20, 33933514), (37, 18342440), (40, 16966757), (74, 9171220), (139, 4882520), (148, 4585610), (185, 3668488), (278, 2441260), (296, 2292805), (370, 1834244), (556, 1220630), (695, 976504), (740, 917122), (1112, 610315), (1390, 488252), (1480, 458561), (2780, 244126), (3299, 205720), (5143, 131960), (5560, 122063), (6598, 102860), (10286, 65980), (13196, 51430), (16495, 41144), (20572, 32990), (25715, 26392)]