71210720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:353

約数の個数: 144

約数和(自身を含む): 202704768

約数和(自身を除く): 131494048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 293, 310, 392, 434, 490, 496, 560, 586, 620, 784, 868, 980, 992, 1085, 1120, 1172, 1240, 1465, 1519, 1568, 1736, 1960, 2051, 2170, 2344, 2480, 2930, 3038, 3472, 3920, 4102, 4340, 4688, 4960, 5860, 6076, 6944, 7595, 7840, 8204, 8680, 9083, 9376, 10255, 11720, 12152, 14357, 15190, 16408, 17360, 18166, 20510, 23440, 24304, 28714, 30380, 32816, 34720, 36332, 41020, 45415, 46880, 48608, 57428, 60760, 63581, 65632, 71785, 72664, 82040, 90830, 114856, 121520, 127162, 143570, 145328, 164080, 181660, 229712, 243040, 254324, 287140, 290656, 317905, 328160, 363320, 445067, 459424, 508648, 574280, 635810, 726640, 890134, 1017296, 1148560, 1271620, 1453280, 1780268, 2034592, 2225335, 2297120, 2543240, 3560536, 4450670, 5086480, 7121072, 8901340, 10172960, 14242144, 17802680, 35605360, 71210720]

約数ペア:

[(1, 71210720), (2, 35605360), (4, 17802680), (5, 14242144), (7, 10172960), (8, 8901340), (10, 7121072), (14, 5086480), (16, 4450670), (20, 3560536), (28, 2543240), (31, 2297120), (32, 2225335), (35, 2034592), (40, 1780268), (49, 1453280), (56, 1271620), (62, 1148560), (70, 1017296), (80, 890134), (98, 726640), (112, 635810), (124, 574280), (140, 508648), (155, 459424), (160, 445067), (196, 363320), (217, 328160), (224, 317905), (245, 290656), (248, 287140), (280, 254324), (293, 243040), (310, 229712), (392, 181660), (434, 164080), (490, 145328), (496, 143570), (560, 127162), (586, 121520), (620, 114856), (784, 90830), (868, 82040), (980, 72664), (992, 71785), (1085, 65632), (1120, 63581), (1172, 60760), (1240, 57428), (1465, 48608), (1519, 46880), (1568, 45415), (1736, 41020), (1960, 36332), (2051, 34720), (2170, 32816), (2344, 30380), (2480, 28714), (2930, 24304), (3038, 23440), (3472, 20510), (3920, 18166), (4102, 17360), (4340, 16408), (4688, 15190), (4960, 14357), (5860, 12152), (6076, 11720), (6944, 10255), (7595, 9376), (7840, 9083), (8204, 8680)]