255001020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2\times {\mathrm{89}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 779194080

約数和(自身を除く): 524193060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 53, 60, 68, 85, 89, 102, 106, 159, 170, 178, 204, 212, 255, 265, 267, 318, 340, 356, 445, 510, 530, 534, 636, 795, 890, 901, 1020, 1060, 1068, 1335, 1513, 1590, 1780, 1802, 2670, 2703, 2809, 3026, 3180, 3604, 4505, 4539, 4717, 5340, 5406, 5618, 6052, 7565, 8427, 9010, 9078, 9434, 10812, 11236, 13515, 14045, 14151, 15130, 16854, 18020, 18156, 18868, 22695, 23585, 27030, 28090, 28302, 30260, 33708, 42135, 45390, 47170, 47753, 54060, 56180, 56604, 70755, 80189, 84270, 90780, 94340, 95506, 141510, 143259, 160378, 168540, 191012, 238765, 240567, 250001, 283020, 286518, 320756, 400945, 477530, 481134, 500002, 573036, 716295, 750003, 801890, 955060, 962268, 1000004, 1202835, 1250005, 1432590, 1500006, 1603780, 2405670, 2500010, 2865180, 3000012, 3750015, 4250017, 4811340, 5000020, 7500030, 8500034, 12750051, 15000060, 17000068, 21250085, 25500102, 42500170, 51000204, 63750255, 85000340, 127500510, 255001020]

約数ペア:

[(1, 255001020), (2, 127500510), (3, 85000340), (4, 63750255), (5, 51000204), (6, 42500170), (10, 25500102), (12, 21250085), (15, 17000068), (17, 15000060), (20, 12750051), (30, 8500034), (34, 7500030), (51, 5000020), (53, 4811340), (60, 4250017), (68, 3750015), (85, 3000012), (89, 2865180), (102, 2500010), (106, 2405670), (159, 1603780), (170, 1500006), (178, 1432590), (204, 1250005), (212, 1202835), (255, 1000004), (265, 962268), (267, 955060), (318, 801890), (340, 750003), (356, 716295), (445, 573036), (510, 500002), (530, 481134), (534, 477530), (636, 400945), (795, 320756), (890, 286518), (901, 283020), (1020, 250001), (1060, 240567), (1068, 238765), (1335, 191012), (1513, 168540), (1590, 160378), (1780, 143259), (1802, 141510), (2670, 95506), (2703, 94340), (2809, 90780), (3026, 84270), (3180, 80189), (3604, 70755), (4505, 56604), (4539, 56180), (4717, 54060), (5340, 47753), (5406, 47170), (5618, 45390), (6052, 42135), (7565, 33708), (8427, 30260), (9010, 28302), (9078, 28090), (9434, 27030), (10812, 23585), (11236, 22695), (13515, 18868), (14045, 18156), (14151, 18020), (15130, 16854)]