73271920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 177176160

約数和(自身を除く): 103904240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 89, 164, 178, 205, 251, 328, 356, 410, 445, 502, 656, 712, 820, 890, 1004, 1255, 1424, 1640, 1780, 2008, 2510, 3280, 3560, 3649, 4016, 5020, 7120, 7298, 10040, 10291, 14596, 18245, 20080, 20582, 22339, 29192, 36490, 41164, 44678, 51455, 58384, 72980, 82328, 89356, 102910, 111695, 145960, 164656, 178712, 205820, 223390, 291920, 357424, 411640, 446780, 823280, 893560, 915899, 1787120, 1831798, 3663596, 4579495, 7327192, 9158990, 14654384, 18317980, 36635960, 73271920]

約数ペア:

[(1, 73271920), (2, 36635960), (4, 18317980), (5, 14654384), (8, 9158990), (10, 7327192), (16, 4579495), (20, 3663596), (40, 1831798), (41, 1787120), (80, 915899), (82, 893560), (89, 823280), (164, 446780), (178, 411640), (205, 357424), (251, 291920), (328, 223390), (356, 205820), (410, 178712), (445, 164656), (502, 145960), (656, 111695), (712, 102910), (820, 89356), (890, 82328), (1004, 72980), (1255, 58384), (1424, 51455), (1640, 44678), (1780, 41164), (2008, 36490), (2510, 29192), (3280, 22339), (3560, 20582), (3649, 20080), (4016, 18245), (5020, 14596), (7120, 10291), (7298, 10040)]