280909720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:597

約数の個数: 128

約数和(自身を含む): 783619200

約数和(自身を除く): 502709480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 229, 260, 280, 337, 364, 455, 458, 520, 674, 728, 910, 916, 1145, 1348, 1603, 1685, 1820, 1832, 2290, 2359, 2696, 2977, 3206, 3370, 3640, 4381, 4580, 4718, 5954, 6412, 6740, 8015, 8762, 9160, 9436, 11795, 11908, 12824, 13480, 14885, 16030, 17524, 18872, 20839, 21905, 23590, 23816, 29770, 30667, 32060, 35048, 41678, 43810, 47180, 59540, 61334, 64120, 77173, 83356, 87620, 94360, 104195, 119080, 122668, 153335, 154346, 166712, 175240, 208390, 245336, 306670, 308692, 385865, 416780, 540211, 613340, 617384, 771730, 833560, 1003249, 1080422, 1226680, 1543460, 2006498, 2160844, 2701055, 3086920, 4012996, 4321688, 5016245, 5402110, 7022743, 8025992, 10032490, 10804220, 14045486, 20064980, 21608440, 28090972, 35113715, 40129960, 56181944, 70227430, 140454860, 280909720]

約数ペア:

[(1, 280909720), (2, 140454860), (4, 70227430), (5, 56181944), (7, 40129960), (8, 35113715), (10, 28090972), (13, 21608440), (14, 20064980), (20, 14045486), (26, 10804220), (28, 10032490), (35, 8025992), (40, 7022743), (52, 5402110), (56, 5016245), (65, 4321688), (70, 4012996), (91, 3086920), (104, 2701055), (130, 2160844), (140, 2006498), (182, 1543460), (229, 1226680), (260, 1080422), (280, 1003249), (337, 833560), (364, 771730), (455, 617384), (458, 613340), (520, 540211), (674, 416780), (728, 385865), (910, 308692), (916, 306670), (1145, 245336), (1348, 208390), (1603, 175240), (1685, 166712), (1820, 154346), (1832, 153335), (2290, 122668), (2359, 119080), (2696, 104195), (2977, 94360), (3206, 87620), (3370, 83356), (3640, 77173), (4381, 64120), (4580, 61334), (4718, 59540), (5954, 47180), (6412, 43810), (6740, 41678), (8015, 35048), (8762, 32060), (9160, 30667), (9436, 29770), (11795, 23816), (11908, 23590), (12824, 21905), (13480, 20839), (14885, 18872), (16030, 17524)]