79441840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:458

約数の個数: 80

約数和(自身を含む): 193130496

約数和(自身を除く): 113688656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 103, 124, 155, 206, 248, 310, 311, 412, 496, 515, 620, 622, 824, 1030, 1240, 1244, 1555, 1648, 2060, 2480, 2488, 3110, 3193, 4120, 4976, 6220, 6386, 8240, 9641, 12440, 12772, 15965, 19282, 24880, 25544, 31930, 32033, 38564, 48205, 51088, 63860, 64066, 77128, 96410, 127720, 128132, 154256, 160165, 192820, 255440, 256264, 320330, 385640, 512528, 640660, 771280, 993023, 1281320, 1986046, 2562640, 3972092, 4965115, 7944184, 9930230, 15888368, 19860460, 39720920, 79441840]

約数ペア:

[(1, 79441840), (2, 39720920), (4, 19860460), (5, 15888368), (8, 9930230), (10, 7944184), (16, 4965115), (20, 3972092), (31, 2562640), (40, 1986046), (62, 1281320), (80, 993023), (103, 771280), (124, 640660), (155, 512528), (206, 385640), (248, 320330), (310, 256264), (311, 255440), (412, 192820), (496, 160165), (515, 154256), (620, 128132), (622, 127720), (824, 96410), (1030, 77128), (1240, 64066), (1244, 63860), (1555, 51088), (1648, 48205), (2060, 38564), (2480, 32033), (2488, 31930), (3110, 25544), (3193, 24880), (4120, 19282), (4976, 15965), (6220, 12772), (6386, 12440), (8240, 9641)]