279195920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1093}}^1$

素因数の和:1240

約数の個数: 80

約数和(自身を含む): 677194752

約数和(自身を除く): 397998832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 103, 124, 155, 206, 248, 310, 412, 496, 515, 620, 824, 1030, 1093, 1240, 1648, 2060, 2186, 2480, 3193, 4120, 4372, 5465, 6386, 8240, 8744, 10930, 12772, 15965, 17488, 21860, 25544, 31930, 33883, 43720, 51088, 63860, 67766, 87440, 112579, 127720, 135532, 169415, 225158, 255440, 271064, 338830, 450316, 542128, 562895, 677660, 900632, 1125790, 1355320, 1801264, 2251580, 2710640, 3489949, 4503160, 6979898, 9006320, 13959796, 17449745, 27919592, 34899490, 55839184, 69798980, 139597960, 279195920]

約数ペア:

[(1, 279195920), (2, 139597960), (4, 69798980), (5, 55839184), (8, 34899490), (10, 27919592), (16, 17449745), (20, 13959796), (31, 9006320), (40, 6979898), (62, 4503160), (80, 3489949), (103, 2710640), (124, 2251580), (155, 1801264), (206, 1355320), (248, 1125790), (310, 900632), (412, 677660), (496, 562895), (515, 542128), (620, 450316), (824, 338830), (1030, 271064), (1093, 255440), (1240, 225158), (1648, 169415), (2060, 135532), (2186, 127720), (2480, 112579), (3193, 87440), (4120, 67766), (4372, 63860), (5465, 51088), (6386, 43720), (8240, 33883), (8744, 31930), (10930, 25544), (12772, 21860), (15965, 17488)]