78401960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:236

約数の個数: 192

約数和(自身を含む): 235282320

約数和(自身を除く): 156880360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 49, 52, 56, 65, 68, 70, 85, 91, 98, 104, 119, 130, 136, 140, 170, 181, 182, 196, 221, 238, 245, 260, 280, 340, 362, 364, 392, 442, 455, 476, 490, 520, 595, 637, 680, 724, 728, 833, 884, 905, 910, 952, 980, 1105, 1190, 1267, 1274, 1448, 1547, 1666, 1768, 1810, 1820, 1960, 2210, 2353, 2380, 2534, 2548, 3077, 3094, 3185, 3332, 3620, 3640, 4165, 4420, 4706, 4760, 5068, 5096, 6154, 6188, 6335, 6370, 6664, 7240, 7735, 8330, 8840, 8869, 9412, 10136, 10829, 11765, 12308, 12376, 12670, 12740, 15385, 15470, 16471, 16660, 17738, 18824, 21539, 21658, 23530, 24616, 25340, 25480, 30770, 30940, 32942, 33320, 35476, 40001, 43078, 43316, 44345, 47060, 50680, 54145, 61540, 61880, 65884, 70952, 80002, 82355, 86156, 86632, 88690, 94120, 107695, 108290, 115297, 123080, 131768, 150773, 160004, 164710, 172312, 177380, 200005, 215390, 216580, 230594, 280007, 301546, 320008, 329420, 354760, 400010, 430780, 433160, 461188, 560014, 576485, 603092, 658840, 753865, 800020, 861560, 922376, 1120028, 1152970, 1206184, 1400035, 1507730, 1600040, 1960049, 2240056, 2305940, 2800070, 3015460, 3920098, 4611880, 5600140, 6030920, 7840196, 9800245, 11200280, 15680392, 19600490, 39200980, 78401960]

約数ペア:

[(1, 78401960), (2, 39200980), (4, 19600490), (5, 15680392), (7, 11200280), (8, 9800245), (10, 7840196), (13, 6030920), (14, 5600140), (17, 4611880), (20, 3920098), (26, 3015460), (28, 2800070), (34, 2305940), (35, 2240056), (40, 1960049), (49, 1600040), (52, 1507730), (56, 1400035), (65, 1206184), (68, 1152970), (70, 1120028), (85, 922376), (91, 861560), (98, 800020), (104, 753865), (119, 658840), (130, 603092), (136, 576485), (140, 560014), (170, 461188), (181, 433160), (182, 430780), (196, 400010), (221, 354760), (238, 329420), (245, 320008), (260, 301546), (280, 280007), (340, 230594), (362, 216580), (364, 215390), (392, 200005), (442, 177380), (455, 172312), (476, 164710), (490, 160004), (520, 150773), (595, 131768), (637, 123080), (680, 115297), (724, 108290), (728, 107695), (833, 94120), (884, 88690), (905, 86632), (910, 86156), (952, 82355), (980, 80002), (1105, 70952), (1190, 65884), (1267, 61880), (1274, 61540), (1448, 54145), (1547, 50680), (1666, 47060), (1768, 44345), (1810, 43316), (1820, 43078), (1960, 40001), (2210, 35476), (2353, 33320), (2380, 32942), (2534, 30940), (2548, 30770), (3077, 25480), (3094, 25340), (3185, 24616), (3332, 23530), (3620, 21658), (3640, 21539), (4165, 18824), (4420, 17738), (4706, 16660), (4760, 16471), (5068, 15470), (5096, 15385), (6154, 12740), (6188, 12670), (6335, 12376), (6370, 12308), (6664, 11765), (7240, 10829), (7735, 10136), (8330, 9412), (8840, 8869)]