128340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:69

約数の個数: 72

約数和(自身を含む): 419328

約数和(自身を除く): 290988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 180, 186, 207, 230, 276, 279, 310, 345, 372, 414, 460, 465, 558, 620, 690, 713, 828, 930, 1035, 1116, 1380, 1395, 1426, 1860, 2070, 2139, 2790, 2852, 3565, 4140, 4278, 5580, 6417, 7130, 8556, 10695, 12834, 14260, 21390, 25668, 32085, 42780, 64170, 128340]

約数ペア:

[(1, 128340), (2, 64170), (3, 42780), (4, 32085), (5, 25668), (6, 21390), (9, 14260), (10, 12834), (12, 10695), (15, 8556), (18, 7130), (20, 6417), (23, 5580), (30, 4278), (31, 4140), (36, 3565), (45, 2852), (46, 2790), (60, 2139), (62, 2070), (69, 1860), (90, 1426), (92, 1395), (93, 1380), (115, 1116), (124, 1035), (138, 930), (155, 828), (180, 713), (186, 690), (207, 620), (230, 558), (276, 465), (279, 460), (310, 414), (345, 372)]