171221960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2767}}^1$

素因数の和:2815

約数の個数: 128

約数和(自身を含む): 502225920

約数和(自身を除く): 331003960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 364, 442, 455, 476, 520, 595, 680, 728, 884, 910, 952, 1105, 1190, 1547, 1768, 1820, 2210, 2380, 2767, 3094, 3640, 4420, 4760, 5534, 6188, 7735, 8840, 11068, 12376, 13835, 15470, 19369, 22136, 27670, 30940, 35971, 38738, 47039, 55340, 61880, 71942, 77476, 94078, 96845, 110680, 143884, 154952, 179855, 188156, 193690, 235195, 251797, 287768, 329273, 359710, 376312, 387380, 470390, 503594, 611507, 658546, 719420, 774760, 940780, 1007188, 1223014, 1258985, 1317092, 1438840, 1646365, 1881560, 2014376, 2446028, 2517970, 2634184, 3057535, 3292730, 4280549, 4892056, 5035940, 6115070, 6585460, 8561098, 10071880, 12230140, 13170920, 17122196, 21402745, 24460280, 34244392, 42805490, 85610980, 171221960]

約数ペア:

[(1, 171221960), (2, 85610980), (4, 42805490), (5, 34244392), (7, 24460280), (8, 21402745), (10, 17122196), (13, 13170920), (14, 12230140), (17, 10071880), (20, 8561098), (26, 6585460), (28, 6115070), (34, 5035940), (35, 4892056), (40, 4280549), (52, 3292730), (56, 3057535), (65, 2634184), (68, 2517970), (70, 2446028), (85, 2014376), (91, 1881560), (104, 1646365), (119, 1438840), (130, 1317092), (136, 1258985), (140, 1223014), (170, 1007188), (182, 940780), (221, 774760), (238, 719420), (260, 658546), (280, 611507), (340, 503594), (364, 470390), (442, 387380), (455, 376312), (476, 359710), (520, 329273), (595, 287768), (680, 251797), (728, 235195), (884, 193690), (910, 188156), (952, 179855), (1105, 154952), (1190, 143884), (1547, 110680), (1768, 96845), (1820, 94078), (2210, 77476), (2380, 71942), (2767, 61880), (3094, 55340), (3640, 47039), (4420, 38738), (4760, 35971), (5534, 30940), (6188, 27670), (7735, 22136), (8840, 19369), (11068, 15470), (12376, 13835)]