28000700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 79619904

約数和(自身を除く): 51619204

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 25, 26, 28, 34, 35, 50, 52, 65, 68, 70, 85, 91, 100, 119, 130, 140, 170, 175, 181, 182, 221, 238, 260, 325, 340, 350, 362, 364, 425, 442, 455, 476, 595, 650, 700, 724, 850, 884, 905, 910, 1105, 1190, 1267, 1300, 1547, 1700, 1810, 1820, 2210, 2275, 2353, 2380, 2534, 2975, 3077, 3094, 3620, 4420, 4525, 4550, 4706, 5068, 5525, 5950, 6154, 6188, 6335, 7735, 9050, 9100, 9412, 11050, 11765, 11900, 12308, 12670, 15385, 15470, 16471, 18100, 21539, 22100, 23530, 25340, 30770, 30940, 31675, 32942, 38675, 40001, 43078, 47060, 58825, 61540, 63350, 65884, 76925, 77350, 80002, 82355, 86156, 107695, 117650, 126700, 153850, 154700, 160004, 164710, 200005, 215390, 235300, 280007, 307700, 329420, 400010, 411775, 430780, 538475, 560014, 800020, 823550, 1000025, 1076950, 1120028, 1400035, 1647100, 2000050, 2153900, 2800070, 4000100, 5600140, 7000175, 14000350, 28000700]

約数ペア:

[(1, 28000700), (2, 14000350), (4, 7000175), (5, 5600140), (7, 4000100), (10, 2800070), (13, 2153900), (14, 2000050), (17, 1647100), (20, 1400035), (25, 1120028), (26, 1076950), (28, 1000025), (34, 823550), (35, 800020), (50, 560014), (52, 538475), (65, 430780), (68, 411775), (70, 400010), (85, 329420), (91, 307700), (100, 280007), (119, 235300), (130, 215390), (140, 200005), (170, 164710), (175, 160004), (181, 154700), (182, 153850), (221, 126700), (238, 117650), (260, 107695), (325, 86156), (340, 82355), (350, 80002), (362, 77350), (364, 76925), (425, 65884), (442, 63350), (455, 61540), (476, 58825), (595, 47060), (650, 43078), (700, 40001), (724, 38675), (850, 32942), (884, 31675), (905, 30940), (910, 30770), (1105, 25340), (1190, 23530), (1267, 22100), (1300, 21539), (1547, 18100), (1700, 16471), (1810, 15470), (1820, 15385), (2210, 12670), (2275, 12308), (2353, 11900), (2380, 11765), (2534, 11050), (2975, 9412), (3077, 9100), (3094, 9050), (3620, 7735), (4420, 6335), (4525, 6188), (4550, 6154), (4706, 5950), (5068, 5525)]