28444400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 74727360

約数和(自身を除く): 46282960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 47, 50, 68, 80, 85, 89, 94, 100, 136, 170, 178, 188, 200, 235, 272, 340, 356, 376, 400, 425, 445, 470, 680, 712, 752, 799, 850, 890, 940, 1175, 1360, 1424, 1513, 1598, 1700, 1780, 1880, 2225, 2350, 3026, 3196, 3400, 3560, 3760, 3995, 4183, 4450, 4700, 6052, 6392, 6800, 7120, 7565, 7990, 8366, 8900, 9400, 12104, 12784, 15130, 15980, 16732, 17800, 18800, 19975, 20915, 24208, 30260, 31960, 33464, 35600, 37825, 39950, 41830, 60520, 63920, 66928, 71111, 75650, 79900, 83660, 104575, 121040, 142222, 151300, 159800, 167320, 209150, 284444, 302600, 319600, 334640, 355555, 418300, 568888, 605200, 711110, 836600, 1137776, 1422220, 1673200, 1777775, 2844440, 3555550, 5688880, 7111100, 14222200, 28444400]

約数ペア:

[(1, 28444400), (2, 14222200), (4, 7111100), (5, 5688880), (8, 3555550), (10, 2844440), (16, 1777775), (17, 1673200), (20, 1422220), (25, 1137776), (34, 836600), (40, 711110), (47, 605200), (50, 568888), (68, 418300), (80, 355555), (85, 334640), (89, 319600), (94, 302600), (100, 284444), (136, 209150), (170, 167320), (178, 159800), (188, 151300), (200, 142222), (235, 121040), (272, 104575), (340, 83660), (356, 79900), (376, 75650), (400, 71111), (425, 66928), (445, 63920), (470, 60520), (680, 41830), (712, 39950), (752, 37825), (799, 35600), (850, 33464), (890, 31960), (940, 30260), (1175, 24208), (1360, 20915), (1424, 19975), (1513, 18800), (1598, 17800), (1700, 16732), (1780, 15980), (1880, 15130), (2225, 12784), (2350, 12104), (3026, 9400), (3196, 8900), (3400, 8366), (3560, 7990), (3760, 7565), (3995, 7120), (4183, 6800), (4450, 6392), (4700, 6052)]