281548260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{509}}^1$

素因数の和:970

約数の個数: 144

約数和(自身を含む): 980179200

約数和(自身を除く): 698630940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 439, 509, 630, 878, 1018, 1260, 1317, 1527, 1756, 2036, 2195, 2545, 2634, 3054, 3073, 3563, 3951, 4390, 4581, 5090, 5268, 6108, 6146, 6585, 7126, 7635, 7902, 8780, 9162, 9219, 10180, 10689, 12292, 13170, 14252, 15270, 15365, 15804, 17815, 18324, 18438, 19755, 21378, 22905, 26340, 27657, 30540, 30730, 32067, 35630, 36876, 39510, 42756, 45810, 46095, 53445, 55314, 61460, 64134, 71260, 79020, 91620, 92190, 106890, 110628, 128268, 138285, 160335, 184380, 213780, 223451, 276570, 320670, 446902, 553140, 641340, 670353, 893804, 1117255, 1340706, 1564157, 2011059, 2234510, 2681412, 3128314, 3351765, 4022118, 4469020, 4692471, 6256628, 6703530, 7820785, 8044236, 9384942, 10055295, 13407060, 14077413, 15641570, 18769884, 20110590, 23462355, 28154826, 31283140, 40221180, 46924710, 56309652, 70387065, 93849420, 140774130, 281548260]

約数ペア:

[(1, 281548260), (2, 140774130), (3, 93849420), (4, 70387065), (5, 56309652), (6, 46924710), (7, 40221180), (9, 31283140), (10, 28154826), (12, 23462355), (14, 20110590), (15, 18769884), (18, 15641570), (20, 14077413), (21, 13407060), (28, 10055295), (30, 9384942), (35, 8044236), (36, 7820785), (42, 6703530), (45, 6256628), (60, 4692471), (63, 4469020), (70, 4022118), (84, 3351765), (90, 3128314), (105, 2681412), (126, 2234510), (140, 2011059), (180, 1564157), (210, 1340706), (252, 1117255), (315, 893804), (420, 670353), (439, 641340), (509, 553140), (630, 446902), (878, 320670), (1018, 276570), (1260, 223451), (1317, 213780), (1527, 184380), (1756, 160335), (2036, 138285), (2195, 128268), (2545, 110628), (2634, 106890), (3054, 92190), (3073, 91620), (3563, 79020), (3951, 71260), (4390, 64134), (4581, 61460), (5090, 55314), (5268, 53445), (6108, 46095), (6146, 45810), (6585, 42756), (7126, 39510), (7635, 36876), (7902, 35630), (8780, 32067), (9162, 30730), (9219, 30540), (10180, 27657), (10689, 26340), (12292, 22905), (13170, 21378), (14252, 19755), (15270, 18438), (15365, 18324), (15804, 17815)]