80521840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2713}}^1$

素因数の和:2786

約数の個数: 80

約数和(自身を含む): 218075328

約数和(自身を除く): 137553488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2713, 2968, 3710, 4240, 5426, 5936, 7420, 10852, 13565, 14840, 18991, 21704, 27130, 29680, 37982, 43408, 54260, 75964, 94955, 108520, 143789, 151928, 189910, 217040, 287578, 303856, 379820, 575156, 718945, 759640, 1006523, 1150312, 1437890, 1519280, 2013046, 2300624, 2875780, 4026092, 5032615, 5751560, 8052184, 10065230, 11503120, 16104368, 20130460, 40260920, 80521840]

約数ペア:

[(1, 80521840), (2, 40260920), (4, 20130460), (5, 16104368), (7, 11503120), (8, 10065230), (10, 8052184), (14, 5751560), (16, 5032615), (20, 4026092), (28, 2875780), (35, 2300624), (40, 2013046), (53, 1519280), (56, 1437890), (70, 1150312), (80, 1006523), (106, 759640), (112, 718945), (140, 575156), (212, 379820), (265, 303856), (280, 287578), (371, 217040), (424, 189910), (530, 151928), (560, 143789), (742, 108520), (848, 94955), (1060, 75964), (1484, 54260), (1855, 43408), (2120, 37982), (2713, 29680), (2968, 27130), (3710, 21704), (4240, 18991), (5426, 14840), (5936, 13565), (7420, 10852)]