78459780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26687}}^1$

素因数の和:26713

約数の個数: 72

約数和(自身を含む): 255564288

約数和(自身を除く): 177104508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26687, 53374, 80061, 106748, 133435, 160122, 186809, 266870, 320244, 373618, 400305, 533740, 560427, 747236, 800610, 934045, 1120854, 1307663, 1601220, 1868090, 2241708, 2615326, 2802135, 3736180, 3922989, 5230652, 5604270, 6538315, 7845978, 11208540, 13076630, 15691956, 19614945, 26153260, 39229890, 78459780]

約数ペア:

[(1, 78459780), (2, 39229890), (3, 26153260), (4, 19614945), (5, 15691956), (6, 13076630), (7, 11208540), (10, 7845978), (12, 6538315), (14, 5604270), (15, 5230652), (20, 3922989), (21, 3736180), (28, 2802135), (30, 2615326), (35, 2241708), (42, 1868090), (49, 1601220), (60, 1307663), (70, 1120854), (84, 934045), (98, 800610), (105, 747236), (140, 560427), (147, 533740), (196, 400305), (210, 373618), (245, 320244), (294, 266870), (420, 186809), (490, 160122), (588, 133435), (735, 106748), (980, 80061), (1470, 53374), (2940, 26687)]