80666320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{509}}^1$

素因数の和:812

約数の個数: 80

約数和(自身を含む): 215521920

約数和(自身を除く): 134855600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 283, 509, 560, 566, 1018, 1132, 1415, 1981, 2036, 2264, 2545, 2830, 3563, 3962, 4072, 4528, 5090, 5660, 7126, 7924, 8144, 9905, 10180, 11320, 14252, 15848, 17815, 19810, 20360, 22640, 28504, 31696, 35630, 39620, 40720, 57008, 71260, 79240, 142520, 144047, 158480, 285040, 288094, 576188, 720235, 1008329, 1152376, 1440470, 2016658, 2304752, 2880940, 4033316, 5041645, 5761880, 8066632, 10083290, 11523760, 16133264, 20166580, 40333160, 80666320]

約数ペア:

[(1, 80666320), (2, 40333160), (4, 20166580), (5, 16133264), (7, 11523760), (8, 10083290), (10, 8066632), (14, 5761880), (16, 5041645), (20, 4033316), (28, 2880940), (35, 2304752), (40, 2016658), (56, 1440470), (70, 1152376), (80, 1008329), (112, 720235), (140, 576188), (280, 288094), (283, 285040), (509, 158480), (560, 144047), (566, 142520), (1018, 79240), (1132, 71260), (1415, 57008), (1981, 40720), (2036, 39620), (2264, 35630), (2545, 31696), (2830, 28504), (3563, 22640), (3962, 20360), (4072, 19810), (4528, 17815), (5090, 15848), (5660, 14252), (7126, 11320), (7924, 10180), (8144, 9905)]